Polemonium 'Lace Towers'Polemonium 'Lace Towers'

Polemonium ‘Lace Towers’


This plant is no longer for sale directly from TERRA NOVA® Nurseries. However, it may still be available through one of our licensees. Please contact our sales department for more information at 800-215-9450.

Features odd-pinnate compound bright green leaves (to 27 leaflets each) that appear ladder-like. Cup-shaped, cobalt blue flowers appear in loose, terminal clusters. Flowers are fragrant.

USDA Hardiness Zone(s): 4-8
Size (HT/W/FL HT): 36″ / 24″ / 48″
Exposure: Part Shade, Full Shade
Bloom Time(s): May, June, July

SKU: POLLT Categories: ,
Common Name Jacob's Ladder
Family Polemoniaceae
Genus Polemonium
species caeruleum
Plant Type Perennial
Persistence Deciduous
US Patent # --
EU Grant # --
Hardiness Zone 4, 5, 6, 7, 8
Growth Habit Upright, Clumping
Size (HT/W/FL HT) 36" / 24" / 48"
Finish Time Fast (4-6 Weeks)
Bloom Time May, June, July
Growth Rate Fast
Most Active Growing Season Spring
Flowering Season Spring
Flower Color Blue
Leaf Color Green
Soil Well drained fertile soils.
pH 5.6 - 6.8
Exposure Part Shade, Full Shade
Special Uses Fragrant, Pollinator Attractor
Nutritional Needs 150 - 200 ppm
Dormancy Required
Water (Greenhouse) Dry moderately between waterings.
Water (Garden) Average
How Different? --
Landscape Value Mixed bed, borders or accent.
Finish Time to 4" 4 weeks
Comments You may find some reversion, but this is not a problem in older plants. Cut out any all green growth. Cut at 6-8" above ground after bloom for regrowth and re-blooms.
Grower Notes Best grown at 55 - 60°F nights and 60 - 65°F days. Provide night interruption or day-length extension to force flowering under natural short days.
Polemonium 'Lace Towers' - Product Profile
Polemonium 'Lace Towers' - Growing Recipe