Seed Starting - Knowledgebase Question

Cornish, NH
Question by LLCallahan
March 17, 2000
Please give instructions on starting edelweiss(Leontopodium alpinum) and Agastache (fragrant mixed). Do they have to be scored or soaked?

Answer from NGA
March 17, 2000


Leontopodium, or edelweiss, are compact (12") perennials bearing bright white, star-shaped flowers above woolly, lance-shaped leaves. Plants prefer partly shady conditions in gritty, loose soil. Seeds have a pre-chill requirement. Mix together with moistened growing medium, seal in a plastic bag, and refrigerate for 3 weeks. Then sow seeds indoors on the surface of moistened seed starting mix, or outdoors in a prepared garden bed. Seedlings will appear in 10-42 days.

Agastache, or hyssop, are summer-blooming plants, growing 2'-6' tall, with spikes of purple, blue, or green flowers above anise-scented, coarse-textured leaves. Plants grown from seed will bloom in 2 years. Provide full sun to light shade in well-draining, fairly rich soil. Seeds are easy to germinate. Sow indoors on the surface of moistened seed starting mix, or outdoors directly in a prepared bed, and just barely cover seeds with additional soil. Seedlings should appear in 30-90 days.

Neither seed type needs to be scored or soaked prior to sowing.

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