What To Know
- The ideal time to harvest yarrow seeds is when the seed heads turn brown and the seeds inside rattle when shaken.
- Alternatively, you can wash the seeds in a colander with cold water and then spread them out to dry.
- Store the dried seeds in airtight containers in a cool, dark, and dry place.
Yarrow, a resilient and versatile herb, is known for its medicinal properties and ornamental beauty. Harvesting its seeds is a rewarding process that allows you to propagate this valuable plant. This comprehensive guide will provide you with step-by-step instructions on how to harvest yarrow seeds, ensuring a successful harvest.
Understanding Yarrow Seed Development
Yarrow typically blooms from mid-summer to early fall, producing clusters of small, white or yellow flowers. As the flowers mature, they develop into tiny, brown or black seeds. The seeds are enclosed within a thin, papery envelope called a cypsela.
Optimal Time for Harvesting
The ideal time to harvest yarrow seeds is when the seed heads turn brown and the seeds inside rattle when shaken. This usually occurs in late summer or early autumn. Avoid harvesting too early, as the seeds may not be fully mature, or too late, as they may shatter and disperse.
Materials Required
- Sharp scissors or pruning shears
- Paper bags or envelopes
- Markers or labels
- Optional: Drying rack or dehydrator
Step-by-Step Harvesting Instructions
1. Identify Mature Seed Heads:
Inspect the yarrow plants for seed heads that are brown and dry. The seeds should rattle when shaken.
2. Cut Seed Heads:
Using sharp scissors or pruning shears, carefully cut the seed heads from the stems, leaving a short stem attached.
3. Place in Paper Bags:
Place the seed heads in paper bags or envelopes. Label the bags with the date and variety of yarrow.
4. Shake and Extract Seeds:
Gently shake the bags to loosen the seeds from the cypselas. Remove any remaining plant material by hand or by sifting through a fine-mesh sieve.
Seed Cleaning and Storage
1. Cleaning:
To remove any impurities, gently blow air over the seeds or use a fan. Alternatively, you can wash the seeds in a colander with cold water and then spread them out to dry.
2. Drying:
Spread the seeds on a drying rack or dehydrator at low heat (below 100°F) until they are completely dry. This will prevent mold growth and maintain seed viability.
3. Storage:
Store the dried seeds in airtight containers in a cool, dark, and dry place. They should remain viable for several years.
Tips for Successful Harvesting
- Harvest on a dry day to prevent mold growth.
- Avoid harvesting during heavy rain or immediately after watering.
- Choose healthy yarrow plants to ensure the quality of the seeds.
- Label your seed bags clearly with the variety and date of harvest.
- Store seeds in airtight containers to maintain their viability.
Takeaways: Preserving Yarrow’s Legacy
Harvesting yarrow seeds is a simple but rewarding process that allows you to propagate this valuable herb. By following these step-by-step instructions, you can ensure a successful harvest and preserve the legacy of this versatile plant for generations to come.
What You Need to Learn
Q: Can I harvest yarrow seeds from any variety?
A: Yes, you can harvest seeds from most varieties of yarrow. However, some cultivars may produce sterile seeds.
Q: How long do yarrow seeds remain viable?
A: Properly stored yarrow seeds can remain viable for several years, although their germination rate may decline over time.
Q: Can I sow yarrow seeds directly into the garden?
A: Yes, you can sow yarrow seeds directly into the garden in the spring or fall. However, starting seeds indoors in late winter or early spring may improve germination rates.
Q: How long does it take for yarrow seeds to germinate?
A: Yarrow seeds typically germinate within 10-21 days.
Q: Can I harvest seeds from yarrow plants that have been treated with pesticides?
A: It is not recommended to harvest seeds from yarrow plants that have been treated with synthetic pesticides, as they may contain harmful residues.
