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Polemonium brandegeei

Polemonium brandegeei

Common name Jacob's ladder
Family polemoniaceae
Life cycle perennial (Z4-8)
Flowers yellow
Size 8"
Light sun-part shade
Cultural notes sharply drained soil
From seed need cold treatment (4-8 wks)
Flowers first year from seed sown indoors early.
detailed seed-starting info below

Yellow-flowered Jacob's ladder, with long tubular blooms on short stalks above frilly foliage. I received seed for this species in a trade one year, and have been propagating it from collected seed every year since. I've not been able to keep it alive through the winter yet. Since the plants should be cold-hardy in our climate, I blame the winter-kill on imperfectly drained conditions. They're not bad as annuals, though - they flower profusely from mid-summer onward. Perhaps regular dead-heading would also help improve the chances of the plant overwintering. The identification is somewhat in question, because several other yellow-flowered polemoniums share similar characteristics.

This plant used to grow in our garden, but it slipped away...

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Seed-starting details for this plant

  1. Seed from '01 trade. Baggy. 2wks 65F (4%G, 9d), 7 wks cold (4%G, 6wks), 65F (76%G, 2-5d)
  2. Seed from '02 garden. Baggy. 30%G from 6wks cold (32-54d)
  3. Seed from '03 garden. Baggy. Cold 5 wks, 20%G at 65F, 5d

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