Polemonium caeruleum subsp. villosum 'Blue master'
This strong-growing Jacob's ladder has been much sturdier and more reliable in our garden than the common Jacob's ladder. It has similar delicate compound foliage, and blue flowers. For years I had this mis-identified as P. pulcherrimum, but I was recently set straight by a UK expert. The yellow anthers, and taller growth, put this squarely into the caeruleum camp. Relative to the plain species, subsp. villosum has fewer leaves along the flowering stems.
||full sun-part shade
||ordinary garden soil, not too dry
||germinates at room temperature
detailed seed-starting info below
|Seed ripens||early July|
|Amazingly popping-green foliage in early April |
In our garden, this plant grows in the following area: side garden
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|Marie Godin||Aug 02, 2009||I love your web pages! They are clear, concise, very informative, beautifully put together.|
- Seed from '02 trade. Baggy with light. 70F (68%G, 4-12d)
- Same seed as above. Baggy with light. 70F (84%G, 6-9d)
- Seed from '05 garden. Baggy 70F with light (58+%G, 4-10d)
- Seed from '06 garden. Baggy 70F with light (50%G, 6-11d)
- 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).
- Seed from '10 garden. Baggy 70F (55+%G, 3-8d)
Light may not be necessary. Seed has limited viability, apparently approximately 2 years.
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April 17, 2011