Go Back Jacob's Ladder Blue Pearl

Polemonium caeruleum
Rock Garden Icon

Plant Type: Perennials

Blue Pearl has deep blue flowers that reach well above the foliage. Blooms throughout the summer, but not in extreme heat. A great improvement over the old 'Jacob's Ladder'.It is a long lived plant with blue flowers and the divided foliage attractively arched. Very nice at the base of small shrubs or bush roses. The flower's fragrance draws people to wherever it is planted. Protect from late day sun.

Currently not available for online purchase.

Growing & Maintenance Tips:

Avoid dry soil with full sun

Flower Color


Foliage Color

Plant Spread

12 in.

Good Companions

Plant Height

10-12 in.

Scape Height

Hardness Zone


Soil Moisture

Characteristics & Attributes


Ground cover, Container, Mass planting, Edging, Moist Shade

Bloom Time

Late spring/early summer

Critter Resistance


Morning sun/afternoon shade, Shade

Growth Rate

Seasonal Interests