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Polemonium caeruleum ssp. yezoense |
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| Synonym(s) |
Polemonium yezoense |
| Common name |
Jacob's ladder |
| Family |
polemoniaceae |
| Life cycle |
perennial (Z4-8) |
| Flowers |
blue (mid-spring) |
| Size |
18-24" |
| Light |
sun-part shade |
From seed  |
germinate at room temperature
detailed seed-starting info below
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Subspecies of the common Jacob's ladder (formerly considered a separate species) that is native to Japan. Known for several named purple-leaved varieties, but the version I grew from seed has dark green leaves. Large (for a polemonium) clear blue flowers in mid-May.
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We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston. About my plant portraits
PlantLinks to other web pages about Polemonium caeruleum ssp. yezoense
- Seed from NARGS '12/'13 exchange. Baggy 70F (43%G, 5-7d)
- Seed from NARGS '13/'14 exchange. Baggy 70F (60%G, 8-21d)
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