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Polemonium pulcherrimum 'Blue master'

 
Polemonium pulcherrimum 'Blue master'
Common name Jacob's ladder, Western sky pilot
Family polemoniaceae
Life cycle perennial
Flowers blue
Size to 12"
Light full sun-part shade
Cultural notes ordinary garden soil, not too dry
From seed germinates at room temperature
detailed seed-starting info below
Seed ripensearly July

This strong-growing Jacob's ladder has been much sturdier and more reliable in our garden than the common Jacob's ladder P. caeruleum. It has the same delicate compound foliage, and blue flowers.

Jacob's ladder, Western sky pilot
Polemonium pulcherrimum 'Blue master'
Amazingly popping-green foliage in early April

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

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Seed-starting details for this plant

  1. Seed from '02 trade. Baggy with light. 70F (68%G, 4-12d)
  2. Same seed as above. Baggy with light. 70F (84%G, 6-9d)
  3. Seed from '05 garden. Baggy 70F with light (58+%G, 4-10d)
  4. Seed from '06 garden. Baggy 70F with light (50%G, 6-11d)
  5. Seed from '06 garden. Baggy 70F (4%G, 19d) - 70F with light (no further G).
    Also seed from '07 garden. Baggy 70F (50%G, 7-12d) - 70F with light (no further G).

Light may not be necessary. Seed has limited viability, apparently approximately 2 years.


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Last modified: March 01, 2009
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