How And When Do I Collect And Preserve Purple Coneflower Seeds? - Knowledgebase Question

Sun Prairie, WI
Question by cfschuch
July 15, 2000
I would like to share my purple coneflower seeds with freinds but I am not sure when the best time to is to collect them. I am also not sure how to collect and preserve them. Thank you for your help!!


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Answer from NGA
July 15, 2000

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Allow the best flowers on the best plants to mature fully and dry on the plant. When the seedhead is quite dry nearly ready to open on its own, harvest it. Allow it to continue drying and when fully dry store in a cool dry location with a steady temperature. Inside the refrigerator is a good spot -- place the dry seeds in a closed jar or other airtight container and be sure to label them.

If you plant them in spring, note that they may need a cold stratification period of a month or so (place in a plastic bag with damp soilless mix or sand or peat moss and chill in the fridge) in order to germinate, although some seeds will germinate without this treatment.

Alternatively, they can be planted in the garden now and will germinate this summer and/or next spring. Another (easier) method is to allow the plants to self sow and then transplant the small seedlings.

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