Polemonium grandiflorum
Polemonium grandiflorum, commonly known as Jacob's Ladder, is an ornamental perennial that thrives in part shade with medium watering. It is suitable for USDA zones 3–8, growing to a height of 0.4–0.6 meters. This plant produces blue and purple flowers from May to July and prefers loamy, chalky, or peaty soil. It is not evergreen, not fragrant, but attracts pollinators.
Light
Partial shade
Watering
Medium water
Soil
Loamy, Chalky, Peaty
Height
0.4–0.6 m
Spread
0.3–0.5 m
Zones
3–8
Flower colors