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.
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.