Blog

It's time to plant strawberries!

4/10/2025

Planting strawberries in Colorado requires careful planning due to our variable climate and short growing season.

The best time to plant strawberries is in early spring (April to May) once the soil is workable and temperatures are consistently above freezing. Choose a location with full sun (at least 6–8 hours daily) and well-draining soil enriched with compost.

Raised beds or containers are ideal for for growing strawberries because they improve drainage, especially in areas with heavy clay soil. Planting strawberries in hanging grow bags is also popular for successfully growing strawberries (especially this year as we could be in for another grasshopper outbreak and grasshoppers are particularly attracted to strawberry plant leaves).

If growing in the ground or a raised bed, space plants 12–18 inches apart in rows, ensuring the crowns (where the stems meet the roots) are just above the soil level to prevent rot.

Growing strawberries in a hanging grow bag is a great way to save space while keeping berries clean and pest-free. Choose a day-neutral or everbearing variety, as these will produce fruit throughout the season.

Fill the bag with a well-draining potting mix enriched with compost or slow-release fertilizer. Hang the bag in a sunny location that gets at least 6–8 hours of sunlight daily. When planting, insert seedlings into the side openings first, then add the top plants to maximize space. Ensure the crowns (where the leaves meet the roots) sit at soil level to prevent rot.

Strawberries in grow bags dry out quickly, so regular watering is essential—check moisture daily and water whenever the top inch feels dry.

Strawberries like being fed! Fertilize every 2–3 weeks with a balanced liquid fertilizer (10-10-10) for healthy growth. To encourage strong plants, pinch off early flowers in the first few weeks after planting during the first year. As strawberries grow, harvest frequently to promote more fruit production.

Strawberries need consistent moisture, about 1–1.5 inches of water per week, but avoid overwatering to prevent disease. Applying mulch, such as straw or pine needles, helps retain moisture, suppress weeds, and protect plants from Colorado’s temperature fluctuations.

In winter, cover plants with straw or fabric row covers to protect them from freezing temperatures. With proper care, strawberries will reward you with sweet, juicy fruit for years to come!

We recommend ever-bearing or day-neutral varieties instead of June bearing cultivars to enjoy fruit all season long (and not get berries only in June). Read all about growing strawberries in this CSU Extension PDF.

This article has lots of useful information on planting and growing strawberries too.

Pretty but problematic perennials that aren't great for the garden

4/7/2025

Shown in photo: Lily-of-the-valley

Sometimes perennials can be troublesome in the garden

The list of perennials below may be pretty to look at, but they all have a dark side, whether that is reseeding so prolifically that they harm the greater environment, or they multiply through suckering underground and are extremely difficult to eradicate.

Before planting any of the following, take heed - you may regret the decision (and the rest of your garden and your neighbors' gardens might too):

Lily-of-the-valley: spreads like crazy, choking out nearby plants
Perennial Bachelor's Button: hyper-reseeding nature. The first year you have one clump and the next year you have 15 or more. Also known as mountain bluet, basket flower, or corn flower.
Chameleon Plant: dazzling to look at but a vigorous spreader through tenacious roots
False Sunflower: spreads aggressively underground and forms large colonies of plants, tough to get rid of
Purple Loosestrife: listed as a noxious weed in many states and outright banned in others - it quickly crowds out native species and overtakes

Mint: regenerates from the smallest bits of roots and it has a LOT of roots. Also, if allowed to flower, it reseeds prolifically. Most gardeners know that once you have it in the ground it is extremely difficult to get rid of or even control to a confined space. Plant only in pots to control the spread.

Colorado has become the 8th state to designate a state mushroom

4/4/2025

IMPORTANT NOTE: THE MUSHROOM SHOWN IN THE IMAGE ABOVE IS NOT AN EMPEROR MUSHROOM. CONTACT AN EXPERT BEFORE FORAGING FOR EMPEROR MUSHROOMS OR ANY KIND OF MUSHROOM.

The Emperor mushroom (Agaricus julius) was chosen after a selection process by students, a teacher, and mycologists.

The Emperor mushroom is a notable species indigenous to Colorado's high-elevation spruce-fir forests and is a favorite of local foragers.

Closely related to the West Coast's Agaricus augustus, or "The Prince," A. julius distinguishes itself with a large, brown-scaled cap and a pronounced almond-like aroma. Unlike its counterpart, A. julius features a more rounded cap when young and thrives in mountainous regions, particularly under coniferous trees.

In March 2025, Colorado officially designated Agaricus julius as the state mushroom, following the signing of bill HB25-1091. This decision was influenced by the mushroom's unique presence in the state's ecosystem and its cultural significance.

The Emperor mushroom is celebrated not only for its distinctive appearance and fragrance but also as a choice edible species, said to have a rich, nutty flavor with distinctive almond-like aroma. It is slightly sweet and earthy tasting, and makes a great addition to savory dishes like stir-fries, risottos, and soups.

To purchase locally, try contacting a local mushroom company such as Elevated Mushrooms, Monster Mushroom Company, or Fresh off the Cap mushroom company.

If you're interested in learning more about foraging and using Emperor mushrooms in your cooking, contact the Colorado Mycological Society.

What full sun, part sun, part shade and shade requirements really mean

4/4/2025

Take a closer look at recommended light requirements so you can select the best plants for your containers and landscape.

Knowing what plant tag sun requirements means and how to choose the best plants for your gardens given what light they get is important, especially in Colorado at high altitude.

The famous plant company Proven Winners breaks this down for us in a simple 2-minute video. Click here to watch.

Image credit: Proven Winners

Top-rated plant identification apps make gardening easier

4/4/2025

Plant ID apps are nifty tools for gardeners and nature enthusiasts, enabling users to identify plant species through photographs.

When choosing a plant identification app, consider factors such as accuracy, user interface, additional features like plant care tips, and whether the app is free or requires a subscription. It's also beneficial to read recent reviews and conduct personal trials to determine which app best suits your needs.

Top-rated plant identification apps

PictureThis
Recognized for its high accuracy, this app can identify over 400,000 plant species. It offers detailed plant care guides and has a user-friendly interface.

PlantNet
A free app that allows users to identify plants by photographing them. It's a collaborative project with a vast database, making it a reliable choice for plant identification.

iNaturalist
A joint initiative by the California Academy of Sciences and National Geographic Society, iNaturalist helps users identify plants and animals. It also connects users with a community of naturalists for further assistance. This came up tops in a lot of user lists.

Plant.id
Plant.id uses machine learning to identify plants from images. It does a good job and it never stops learning.

LeafSnap
Plant identification app that uses visual recognition technology to help users identify trees and plants through detailed photographs of their leaves – gets high marks for plant identification, easy to use, and provides some handy information that some users might find interesting.

PlantStory
A community-driven app that combines plant identification with social networking, allowing users to connect with fellow plant enthusiasts, share gardening tips, and showcase their plant collections. It also offers tools for plant care tracking, creating a personalized and engaging experience for plant lovers.

Google Lens
While not exclusively a plant identification app, Google Lens can identify various species in photographs. Not your highest rated accuracy, but if it’s all you have in the moment give it a try.

Arbor Day is April 26, 2025

4/4/2025

Celebrate trees this Arbor Day!

Arbor Day is a celebration of trees and their importance to the environment, communities, and future generations.

It was first observed in 1872 in Nebraska, thanks to J. Sterling Morton, who recognized the need for tree planting in the prairie landscape. Today, Arbor Day is celebrated worldwide, with individuals and organizations planting trees to promote environmental sustainability, improve air quality, and combat climate change.

Planting a tree on Arbor Day is a simple yet impactful way to contribute to a healthier planet. Whether in backyards, parks, or urban spaces, trees provide shade, reduce erosion, support wildlife, and enhance the beauty of our surroundings.

By participating in Arbor Day, we help create greener, more resilient communities for years to come.

the Town of Parker is having an Arbor Day celebration on April 26th at Discovery Park starting at 9am. A fun, educational event that the whole family can enjoy is planned, and is an important piece to keeping Parker named as a "Tree City USA".

The Tree City USA program is sponsored by the Arbor Day Foundation in cooperation with the USDA Forest Service and the National Association of State Foresters.

Plant a tree this Spring! Recommendations for good trees to plant and instructions for success click here.

Can you use old seeds for seed starting?

3/27/2025

Yes, you can use old seeds for seed starting, but their viability depends on age, storage conditions, and seed type.

Many seeds remain viable for several years if stored in a cool, dry, and dark place, though germination rates decline over time.

To test old seeds before planting, perform a germination test by placing a few seeds on a damp paper towel, sealing them in a plastic bag, and keeping them in a warm spot for a few days.

If most sprout, they are still good to use; if only a few germinate, you may need to plant extra seeds to compensate for lower success rates.

Some seeds, like tomatoes and peppers, last 4–5 years, while others, like onions or parsley, lose viability faster. With proper testing and adjustments, you can still get good results from older seeds!

Read more about this here.

How to prevent birds from flying into windows

3/27/2025

Birds often collide with windows because they see reflections of trees, sky, or open spaces and mistake them for safe passage.

These collisions can cause serious injury or death, especially for migratory birds. Birds do this because they don't see glass as glass, or any sort or barrier. They think the the window is part of the sky and landscape, or occasionally they'll attack a window when they see their own reflection in it (this is more common during mating season).

By making windows more visible to birds, you can protect wildlife while maintaining clear views of your garden. A few small adjustments can make a big difference in preventing unnecessary bird injuries and deaths.

One of the simplest solutions is to apply window decals, stickers, or patterns that break up reflections. These should be spaced no more than 2 inches apart vertically and 4 inches apart horizontally to effectively deter birds.

Other options include UV-reflective window films, which are nearly invisible to humans but visible to birds, or soap or tempera paint designs that provide a temporary fix. You can also hang something in the window (wreath, glass prism etc.) to deter birds.

Another approach is to alter the exterior environment. Installing external screens or netting can reduce reflections and create a physical barrier. Keeping bird feeders and baths far away (over 30 feet) from windows reduces the risk of high-speed collisions.

Try removable window film (many home stores carry it). It looks opaque from the outside but doesn't affect the view from the inside.

NOTE: This isn’t just a daytime problem—it also affects birds that fly at night, including songbirds. At night, lighted windows, as well as the glow of bright outdoor lighting on your home, can disorient birds and divert them from their path; this puts them at risk for collisions. There are easy fixes, though—you can turn off lights at night or install outdoor and house lighting that faces down.

How to Help an Injured Bird
Birds striking a window in full flight are often killed outright. Others may have internal injuries to which they succumb later, but some birds are only temporarily out of action.

"Many times when a bird hits a window, they are stunned and just need a little time to recover. Putting them in a dark, warm, quiet place lets them gather their wits about them, and then they can be released after 15 or 20 minutes," says an expert. Place the bird in a box with a lid, and be sure to keep cats and dogs away while you wait for it to recover.

After 20 minutes, if the bird doesn't fly away on its own, or if you noticed a bad injury at the outset, call a wildlife rehabilitator. They will advise and may ask you to bring the bird to them."

While windows bring welcome garden views and sunshine into our homes, they pose a lethal threat to wild birds. But with a few simple adjustments, you can help your winged visitors avoid that danger.

Ways to bring your lawn back to life this Spring

3/27/2025

Winter can leave your lawn looking dull, patchy, or thin. Here's how to revive it for a lush, green yard.

Follow these steps to restore your lawn's health this Spring:

1. Rake & Remove Debris
Start by raking away dead grass, leaves, and debris to allow sunlight and air to reach the soil. This also prevents mold and disease from spreading.

2. Test & Improve the Soil
Use a soil test kit to check pH and nutrient levels.
If the soil is too acidic, apply lime; if too alkaline, add sulfur.
Apply compost or organic matter to improve soil health.

3. Aerate the Lawn
Aerating helps relieve compacted soil and allows water, air, and nutrients to reach the roots. Use a manual or mechanical aerator to create small holes throughout the lawn.

4. Overseed Bare Spots
Spread grass seed over thin or dead areas. Scratch at the thin or dead areas with a rake before spreading grass seed so the seeds can take hold.
Choose a grass type that matches your climate and lawn conditions (sun vs. shade).
Keep the soil moist until new grass is established.

5. Fertilize for Healthy Growth
Apply a slow-release, balanced fertilizer to give your lawn the nutrients it needs. Be cautious of using lawn fertilizer products that contain a lot of salt - in our climate with our clay and sandy soils salt is not our friend - it is very drying. Organic options, like compost tea, can be great alternatives.

Water Wisely
Deep, infrequent watering (1–1.5 inches per week) encourages deep root growth.
Water early in the morning to reduce evaporation and prevent fungal diseases.

Control Weeds & Pests
Apply a pre-emergent weed preventer to stop weeds like crabgrass before they sprout.

The pros and cons of growing the ever-popular Miscanthus ornamental grass

3/27/2025

Miscanthus is a popular ornamental grass known for its graceful foliage, tall plumes, and year-round interest. However, it has both benefits and drawbacks to consider.

Pros:

Low Maintenance – Once established, Miscanthus requires minimal care and thrives with little attention.
Drought-Tolerant – Well-suited for dry conditions, making it great for water-wise landscaping.
Year-Round Interest – Provides lush green foliage in summer, plumes in fall, and structure in winter.
Erosion Control & Windbreak – Its deep roots help stabilize soil, making it ideal for slopes and wind protection.
Wildlife Friendly – Offers shelter for birds and beneficial insects.
Versatile Landscaping Use – Works well as a privacy screen, focal point, or backdrop in garden designs.

Cons:

Can Be Invasive – Some varieties (especially Miscanthus sinensis) spread aggressively and may outcompete native plants.
Hard to Remove – Once mature, its deep root system makes it difficult to dig up or control.
Fire Hazard in Dry Climates – Dried winter foliage can be highly flammable in wildfire-prone areas.

Slow to Green Up in Spring – It emerges late in the season, leaving bare spots in early spring gardens.

Needs Annual Pruning – Requires cutting back in late winter to maintain a tidy look and encourage new growth.

Best Practice:
If you choose to grow Miscanthus, consider clump-forming, non-invasive varieties like Miscanthus sinensis ‘Adagio’ or ‘Little Zebra’. Regular maintenance and cutting back before seeds spread can help prevent unwanted spreading.

Mistakes to avoid with a hummingbird feeder

3/27/2025

Create a safe and welcoming space for hummingbirds by taking time to keep your feeder clean and avoid common mistakes that can actually harm these tiny birds.

Here's what to know attract these beautiful tiny birds AND not inadvertently harm them:

Don't put red dye in the nectar – Cornell Lab of Ornithology recommends against using red dye in feeders as it has been shown to be harmful to hummingbirds. Stick to a simple mix of 1 part white sugar to 4 parts water—no coloring needed!
Do clean the feeder regularly – Sugar water ferments quickly, leading to mold and bacteria growth. Clean the feeder with hot water (no soap) every 2–3 days in warm weather and weekly in cooler temps.
Do place the feeder in a shady area – Heat speeds up nectar spoilage. Hang the feeder in partial shade to keep it fresh longer.
No honey or artificial sweeteners – Honey can ferment and cause deadly fungus, and artificial sweeteners lack nutrients. Stick to plain white sugar.
Do change the nectar often – In hot weather, nectar should be replaced every 1–2 days to prevent fermentation. In cooler weather, change it every 3–5 days.
Do choose a feeder with built-in bee guards and an ant moat – Bees and ants can take over feeders, keeping hummingbirds away.
Don't place feeders too close to windows – This increases the risk of window collisions. Keep feeders at least 3 feet from windows or add decals to help birds see the glass.
Do have multiple feeders – Hummingbirds can be territorial. Having feeders in several different spots helps reduce aggression and allows more birds to feed.
Do provide natural food sources – Supplement feeders by growing hummingbird-friendly flowers like salvia, bee balm, and trumpet vine for a more natural and sustainable food source.

Deer resistant plants with beautiful blooms

3/27/2025

You already know that deer have big appetites, and our gardens are top on their list of favorite places to dine. Deer typically won't eat these 24 pretty plants.

This list was compiled by Better Homes & Gardens. Read the full article (with nice photos) here. If you click on each photo in the article you can see it in large format. Also, there's an excellent Frequently Asked Questions section at the bottom of the article you'll want to read.

Here's the list of 24 deer-resistant plants from the article:

Astilbe (in photo shown above)
Hellebore
Peony
Catmint
Bluestar
Penstemon
Foxglove
Coral Bells
Tickseed
Purple Coneflower
Russian Sage
Salvia
Columbine
Thyme
Meadow Rue
Bee Balm
Burnnera
Sea Holly
Lungwort
Epimedium
Butterfly Weed
Crocosmia
Joe Pye Weed
Wild Ginger

Cleaning and caring for Garden Tools - articles roundup

3/20/2025

Here are great articles from our archives on the care and keeping of garden tools - and why keeping them clean is so important

We've rounded up articles from past years to help you get a head start on getting your garden tools ready for the 2025 season, plus a reminder that garden cleanup timing is important for bees and other beneficial insects who may be sheltering in garden debris until consistent warm temps.

5 great garden habits for a smooth growing season

The right time to tackle garden cleanup isn't as early as you think

Wisdom holds that the best time for Spring clean-up in cold climates is after seven days of 50-degree temperatures.

Seasonal Pruning Guide

3/20/2025

By following seasonal pruning, your plants will stay healthy, productive, and beautifully shaped year-round!

Spring (After Blooming)

Spring-flowering shrubs (e.g., lilacs, forsythia, azaleas) – Prune after flowers fade to avoid cutting next year’s buds.
Dead or damaged branches – Remove winter-damaged wood to promote healthy growth.
Early bloomers – Trim lightly to maintain shape.

🌞 Summer (Mid to Late Season)

Shrubs that bloom on new wood (e.g., butterfly bush, roses, hydrangeas) – Prune after the first flush of flowers to encourage reblooming.
Hedges & evergreens – Lightly shape as needed, avoiding heavy pruning in extreme heat.
Fruit trees (like peaches & cherries) – Prune lightly to improve air circulation.

🍂 Fall (Minimal Pruning)

Avoid major pruning, as cuts may not heal before winter.
Remove dead or diseased wood to prevent pests and disease.
Shape perennials & lightly cut back shrubs (but leave ornamental grasses & seed heads for winter interest).

❄️ Winter (Dormant Pruning – Late Winter to Early Spring)

Deciduous trees & shrubs (e.g., oaks, maples, apples) – Prune while dormant to promote strong spring growth.
Roses & summer-blooming hydrangeas – Cut back before new growth emerges.
Avoid pruning spring bloomers, as buds are already set for the next season.

Specific shrubs and plants pruning recommendations click here.

Why care about dirt?

3/19/2025

Healthy plants need healthy soil

Not all soil is created equal.

Soil serves many important functions in an ecosystem. Whether it is in your landscape or an indoor pot, soil is the medium for your plants to thrive.

USDA’s National Resources Conservation Services notes that high-quality soil performs five functions at the same time:

Acts like a sponge, soaking up rainwater and limiting runoff. It also helps with groundwater recharge and controlling rainwater runoff in urban environments.
Acts like a faucet, storing and releasing water and air for plants and animals to use.
Acts like a supermarket, providing valuable nutrients, air, and water to plants. Soil also stores carbon and prevents it from being lost into the atmosphere.
Acts like a strainer or filter, purifying the water and air that flows through it.
Detoxifies and traps pollutants, such as oil, pesticides, herbicides, and heavy metals, keeping them from entering groundwater supplies. It also stores nutrients for your plants.

Much of Colorado’s soil is heavy clay and can be alkaline. To support the trees, shrubs, and other plants we enjoy in our urban landscapes, our soil may need some help. You can’t change the temperature, wind, or dry air we see in our state, but you can amend the soil to make it more hospitable to plant life.

Have your soil tested or talk with your landscape professional about the best amendments for your particular soil type. Compost is a common amendment—but be careful, as some composts can be high in salt. Learn what's in the compost before purchasing.

Credit: ALCC

What to do about voles or moles in your outdoor spaces

3/18/2025

Voles and moles are often confused due to their underground activity, but they are different animals with distinct behaviors, diets, and impacts on gardens and lawns.

Voles are small, rodent-like mammals that resemble mice. They have short tails, small eyes, and a stocky body covered in brown or gray fur. Voles primarily feed on roots, bulbs, bark, and plants, making them a threat to gardens and young trees.

Voles create shallow, visible runways in grass and mulch, which they use to travel between burrow entrances. Voles reproduce quickly and can cause significant plant damage in a short amount of time.

Moles, on the other hand, are not rodents but insectivores. They have pointed snouts, small hidden eyes, and large, paddle-like front paws adapted for digging.

Unlike voles, moles do not eat plants; instead, they feed on earthworms, grubs, and insects found in the soil. Moles create raised mounds (molehills) as they burrow deep underground. While their tunneling can disrupt lawns and gardens, they are beneficial in controlling soil pests.

Voles damage plants and trees, while moles primarily disturb soil without eating vegetation. Identifying the right pest is crucial for using effective control methods in your yard or garden.

See our Resource PDF on how to get rid of voles and moles.

Photo credit: Chippers Inc.

Which Animals Dig Holes in the Yard? Most commonly, these are the animals that could be causing damage to your yard: chipmunks, squirrels, rats or mice, voles, moles, rabbits. Noticing damage to freshly laid sod? Raccoons like to peel fresh sod up and eat grubs from the dirt that's attached to the soil's roots. In this situation, contact a local wildlife removal specialist for help with raccoons.

How to care for a Shamrock Plant (Oxalis spp.)

3/14/2025

With proper care, shamrock plants will reward you with vibrant foliage and charming blooms year after year

Shamrock plants, known for their clover-like leaves and delicate flowers, are easy to grow and can thrive indoors or outdoors with proper care.

Light

Prefers bright, indirect light (near a sunny window but away from direct afternoon sun).
Can tolerate some direct sun but avoid harsh midday exposure.

Watering

Keep the soil lightly moist, but allow the top inch to dry out between waterings.
Avoid overwatering, as shamrocks have delicate, tuberous roots that can rot.

Temperature & Humidity

Thrives in temperatures between 60–75°F (16–24°C).
Avoid extreme heat and cold drafts.
Prefers moderate humidity but adapts to normal indoor conditions.

Soil & Potting

Use a well-draining potting mix, such as one designed for houseplants.
Ensure the pot has drainage holes to prevent soggy soil.

Dormancy Period

Shamrock plants go dormant for a few weeks (leaves die back).
Reduce watering and stop fertilizing during dormancy.
Resume regular care when new growth appears.

Fertilizing

Feed with a balanced liquid fertilizer once a month during the growing season (spring & summer).
Avoid over-fertilizing, as shamrocks don’t need heavy feeding.

Propagation

Easily propagated by dividing tuberous roots when repotting.

It's time to clean your bluebird boxes

3/13/2025

We are entering into bluebird season - when those stalwart blue-feathered friends begin reappearing in our landscapes looking for mates and homes in which to raise their fledglings.

One easy thing you can do to help the population thrive is to clean out your bird boxes each Spring (early to mid-March). Here's how:

Ensure that the entrance hole size is not enlarged or blocked
Repair or replace cracked or rotten wood
Check to make sure that the nest box resists water intrusion
Clean the interior after each brood has fledged to reduce parasites. A paint scraper or car window scraper handily remove dried droppings stuck to the walls of the box.

Not all sources agree that cleaning out the boxes is needed, but if you are so inclined here are a few recommendations for how to do so in a manner safe for the birds:

Remove old nesting material and scrub the house with a solution of one part bleach to nine parts water and remember to rinse well to eliminate any residual smell. Dry the house thoroughly, with the door open, in the sun.
Use an unscented mild dish soap and warm water solution to keep mold from getting in and spreading, dry thoroughly in the sun.
Some people prefer to use white vinegar instead of bleach. Use a light spray of cleaning vinegar (not more than 6% concentration) to kill any parasites and bugs that have taken up residence, rinse with water, and dry thoroughly.

A car window scraper or paint scraper is handy for cleaning out last year's nest mess on sidewalls, inside top and inside bottom of box.

When to divide Shasta Daisies

3/7/2025

Shasta daisies should be divided every 2-3 years to maintain their health and vigor.

The best time to divide Shasta daisies is in early spring, just as new growth begins to emerge, or in early fall after they have finished blooming.

Dividing them in early spring allows the plants to establish new roots before the growing season, while dividing in early fall gives them time to settle in before winter.

To divide Shasta daisies, dig up the clump carefully, ensuring you get as many roots as possible. Use a sharp knife or garden space and gently separate it into smaller sections, making sure each division has healthy roots and shoots.

Immediately replant the divisions at the same depth as the original clump in well-drainig soil, water thoroughly and keep soil moist until new growth appears.

Where we live, it's always a good idea to add a layer of mulch to retain moisture and protect the roots from hard frosts and freezes.

Dividing Shasta Daisies helps prevent overcrowding, promotes abundant blooms, and keeps them looking their best year after year.

How to divide 45 favorite perennials

3/5/2025

As soon as you can work in the soil is the time to divide perennials, ensuring healthier growth and better blooms.

Dividing perennials is a best practice in the garden because it allows the plants to continue to grow and thrive.

Dividing improves the health of the foliage and can increase the number of blooms, and it keeps the plants more disease resistant and extends their overall growing life.

Signs that a perennial needs dividing:

Decreased Blooming – If a perennial produces fewer or smaller flowers than usual, it may be overcrowded and in need of division.
Dead or Hollow Center – When the middle of the plant looks bare or dies out and growth is only on the edges, it’s a sign the plant is too dense.
Overcrowding & Weak Growth – If the plant spreads too much or nearby plants are being overtaken, it’s time to divide.
Floppy or Leggy Stems – Weak, stretched-out stems that flop over often indicate the plant is struggling for nutrients and space.
Slower Growth & Decline in Health – If the plant isn’t as lush or vigorous as in previous years, its roots may be competing for nutrients.
Rootbound Conditions – If roots become tightly packed in the soil or circle around in a pot, the plant needs more room to grow.
Water Stress – If the plant dries out quickly despite regular watering, overcrowded roots may be preventing water absorption.

Thanks go to GardenGate Magazine for this handy chart that tells us when and how to divide the most popular perennials. This one's a keeper!

Get the Chart here.

Perennials that don't like being divided include Peonies, Baptisia, Monkshood, Bleeding Heart, and Butterfly Weed.

Your Spring Planting Strategy

2/28/2025

Cole crops like broccoli, cauliflower, and cabbage can be direct seeded into your garden around April 23, assuming the ground can be worked, but it's better to start them indoors around March 26 and then transplant them into the garden around May 15. Do the same with lettuce and spinach.

Plant onion starts and potatoes around April 5. Sow the seeds of peas (sugar snap and english) at the same time. If the ground is still frozen, then plant these as soon as the ground thaws.

Start tomatoes, peppers, and eggplants indoors around March 26. Then, around May 31 you should start watching the weather forecast and, as soon as no frost is forecast, go ahead and transplant those into the ground.

Now, for all the summer vegetables like beans, peas, corn, squashes, pumpkins, cucumbers, watermelons, gourds and sunflowers: plant those seeds directly into the ground around June 4, or if your soil is still very cold, once the soil is near 60° F in temperature.

However, our location has a shorter than average growing season. Many summer vegetables need more days to mature than our area will provide. Get a head-start by starting these summer vegetables indoors around May 15, and transplant those seedlings out after the danger of frost is past.

The oldest ecosystems on earth

2/24/2025

Mad respect for what the oldest ecosystems teach us about resilience!

Some of the oldest ecosystems on Earth have existed for millions—even billions—of years, evolving to sustain complex life while remaining relatively unchanged. These ancient ecosystems offer a glimpse into Earth's distant past and continue to support diverse species today.

Some of the oldest ecosystems are rainforests. They have existed for over 100 million years and act as 'carbon sinks' (remove carbon dioxide from the atmosphere and store it in a solid or liquid form) and house more than half of the Earth's plant and animal species.

Some rainforests, like the Daintree Rainforest in Australia, have existed for 180 million years, making them older than the Amazon and even the dinosaurs' extinction.

These ancient ecosystems have remained relatively unchanged, allowing unique plant and animal species to evolve and thrive.

Ancient ecosystems demonstrate resilience through adaptation, biodiversity, and interconnectedness. Despite facing environmental changes over millions of years, they have thrived by evolving complex survival strategies.

Their ability to recover from natural disturbances, such as storms and floods, teaches us about the power of regeneration and balance in nature.

One key lesson is diversification as a survival strategy. With millions of plant, animal, and microbial species, rainforests show that ecosystems with greater biodiversity are more adaptable and resistant to change.

They also highlight the importance of symbiotic relationships, where species depend on each other for survival, reinforcing the idea that cooperation fosters strength.

Despite their age and importance, rainforests face deforestation, climate change, and habitat destruction. Protecting them is vital not just for biodiversity but also for maintaining the Earth's climate stability.

Often called the "lungs of the Earth", rainforests absorb CO2 and produce oxygen, which helps to regulate the entire global climate. The 'carbon sink' process of carbon absorption is known as carbon sequestration.

How and when to grow cold-hardy pansies for Spring cheer

2/24/2025

Pansies thrive in cold temperatures and even tolerate light snow.

To grow cold-hardy pansies successfully in our area, follow these steps:

Choose the Right Variety
Select winter-hardy pansies, such as the Delta, Matrix, or Cool Wave series, which tolerate frost and rebound after freezing temperatures.

Plant at the Right Time
In fall, plant pansies at least 6 weeks before the first frost to establish strong roots.
In early spring, plant as soon as the soil is workable.

Pick a Sunny Location
Pansies grow best in full to partial sun (at least 4–6 hours of sunlight daily).
Ensure good air circulation to prevent fungal diseases.

Use Well-Draining Soil
Pansies prefer rich, loose soil with good drainage. Add compost to improve soil fertility. It's ok to crowd pansy plants together - they don't mind at all. Don't mound soil up over the crown of the plant - soil just at the level as the crown is good.

Water and Mulch
Keep the soil moist but not soggy—pansies don’t like to dry out. INsufficient watering is a common mistake - if the plants looks wilted, they need water.

Apply a thin layer of mulch (straw or pine needles work great) to insulate roots from temperature swings.

Fertilize for Strong Growth
Use a balanced fertilizer (10-10-10) every few weeks for continuous blooms.
Avoid too much nitrogen, which encourages leaves over flowers.

Protect from Extreme Cold
Pansies survive light snow and frost, but in deep freezes (below 20°F/-7°C), cover them with burlap or frost cloth for extra protection. If the forecast calls for an especially harsh cold snap, mulch heavily or grow in containers that can be moved to shelter like a garage or shed.

By following these steps, your cold-hardy pansies will bloom beautifully and brighten up early spring gardens!

Pansy varieties to choose for planting this time of year
For Colorado winters, the best pansies are varieties like Blue Velvet and Northern Lights which are considered hardy and can withstand the state's colder temperatures; other good options include Matrix, Viola Tricolor, and Cool Wave pansies, all known for their ability to thrive in Colorado's sometimes unpredictable weather.

Gardens grow from silk in these skillfully crafted embroideries

2/23/2025

Dreaming of pansies? These whimsically blooms are stitched in teacups and and mossy patches.

This is the time of year when we can almost start planting cold-hardy pansies (other than an extremely cold spell they should survive the remainder of winter where we live and will look so pretty and cheerful in pots or popping up in the garden come Easter).

Until that time (mid-March/early April is probably safe), we can revel in the beauty of pansies and other floral beauties in these works of flower embroidery art.

Moscow-based fiber artist Rosa Andreeva has a special skill crafting the cutest little gardens complete with moss, pollen, spider webs, and stitched cracked teacups.

Each one is more astounding than the last in their whimsy and beauty.

View the embroidered lovelies here, and prepare to be amazed by her embroidered birds, and quaint seasonal scenes here.

Preen as a weed pre-emergent

2/17/2025

This stuff really works!

Preen is a popular pre-emergent weed preventer used in gardens and landscapes to stop weeds before they sprout.

It works by creating a barrier in the soil that prevents weed seeds from germinating, making it an effective tool for maintaining weed-free flower beds, vegetable gardens, and walkways.

It is available in granular form and is typically applied to the soil and then watered in (or time is just right with a late Spring snowstorm) to activate its weed-blocking properties. While it does not kill existing weeds, it significantly reduces future weed growth, saving you a lot time and effort in keeping weeds down.

Preen is available in various formulas, including options safe for use around vegetables, flowers, and shrubs. Some versions even contain fertilizers to nourish plants while preventing weeds.

It is important to follow application instructions carefully, as improper use can affect desired plants.

While effective, Preen is best used as part of a broader weed management strategy that includes mulching and hand-pulling stubborn weeds. If you add Preen into your regular garden care, you'll enjoy a healthier, low-maintenance landscape with fewer unwanted plants competing for nutrients and space.

<<Previous

Planting strawberries in Colorado requires careful planning due to our variable climate and short growing season.

Sometimes perennials can be troublesome in the garden

The Emperor mushroom (Agaricus julius) was chosen after a selection process by students, a teacher, and mycologists.

Take a closer look at recommended light requirements so you can select the best plants for your containers and landscape.

Plant ID apps are nifty tools for gardeners and nature enthusiasts, enabling users to identify plant species through photographs.

Celebrate trees this Arbor Day!

Yes, you can use old seeds for seed starting, but their viability depends on age, storage conditions, and seed type.

Birds often collide with windows because they see reflections of trees, sky, or open spaces and mistake them for safe passage.

Winter can leave your lawn looking dull, patchy, or thin. Here's how to revive it for a lush, green yard.

Miscanthus is a popular ornamental grass known for its graceful foliage, tall plumes, and year-round interest. However, it has both benefits and drawbacks to consider.

Create a safe and welcoming space for hummingbirds by taking time to keep your feeder clean and avoid common mistakes that can actually harm these tiny birds.

You already know that deer have big appetites, and our gardens are top on their list of favorite places to dine. Deer typically won't eat these 24 pretty plants.

Here are great articles from our archives on the care and keeping of garden tools - and why keeping them clean is so important

By following seasonal pruning, your plants will stay healthy, productive, and beautifully shaped year-round!

Healthy plants need healthy soil

Voles and moles are often confused due to their underground activity, but they are different animals with distinct behaviors, diets, and impacts on gardens and lawns.

With proper care, shamrock plants will reward you with vibrant foliage and charming blooms year after year

Shasta daisies should be divided every 2-3 years to maintain their health and vigor.

As soon as you can work in the soil is the time to divide perennials, ensuring healthier growth and better blooms.

Mad respect for what the oldest ecosystems teach us about resilience!

Pansies thrive in cold temperatures and even tolerate light snow.

Dreaming of pansies? These whimsically blooms are stitched in teacups and and mossy patches.

This stuff really works!

Author

Archives

Categories