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Thermopsis montana?

 
Thermopsis montana?
golden pea, golden banner
Thermopsis montana?
A blast of cool yellow in the late-April garden

Common name golden pea, golden banner
Family fabaceae
Life cycle perennial (Z3-9)
Flowers yellow (mid-spring)
Size 3-4'
Light sun-part shade
Cultural notes ordinary garden soil, drought tolerant
From seed nick and soak seed, germinate warm
detailed seed-starting info below
Seed ripenslate June

I'm not sure about the identity of this one. It grew from the same batch of seed as our Thermopsis villosa, but is clearly a different plant: it blooms about a month earlier (in early May, instead of early June), has pointier leaves, and its flowers are arranged more sparsely along the flower stalk. All in all, a very nice plant. The tentative ID comes from helpful Gardenweb suggestions. If you believe it's incorrect, please leave a comment below.

In our garden, this plant grows in the following areas: side garden, the lane, orchard nursery area

Seed for this plant is included on my seed trade list

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Seed-starting details for this plant

  1. Seed from '03 garden. Baggy 70F (6w; 7%G, after scarifying with sandpaper in 5th wk) - 75F (3w; 29%G, after further scarifying)
  2. Seed from '04 garden. Sandpapered hard, soaked overnight. Baggy 70F (4w; 2%G, 12d) - 75F (45%G, 2-14d)
  3. Seed from '06 garden. Sandpapered, soaked 1d. Baggy 75F (7%G, 5-19d).
    Try again, same seed. Sandpapered, baggy 70F (23d) - 75F (17d; 10%G, 5-13d)

Seedcoats impervious to moisture - scarification and warmth both help germination.


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Last modified: March 29, 2008
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