Yellow Avens (Geum aleppicum)

Seed Collection Time:

Mid to late summer — typically July through September.

Signs seeds are ready:

• After flowering, the plant produces rounded, bristly seed heads made up of numerous small achenes.

• Each achene has a hooked style, aiding in animal dispersal.

• Seed heads turn from green to brown, and seeds become firm and dark.

• Seeds detach easily when rubbed between fingers.

Seed collection steps:

1. Collect entire seed heads when mostly brown and dry, but before they begin dropping seeds.

2. Place in a paper bag or tray and allow to air dry for 1–2 weeks indoors.

3. Rub seed heads gently to release seeds.

4. Use a screen or winnow to separate seeds from chaff.

Germination tip:

• Requires cold-moist stratification for 60–90 days.

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• C(60–90): Mix with moist sand and refrigerate, or sow in fall for natural stratification.

• Seeds may be slow to germinate, emerging irregularly in spring.