Greek valerian

A sky-blue flower that is widely cultivate for its ladder-like, bright-green foliage! 

Polemonium caeruleum (Greek valerian) native to northern and central Europe, this cup-shaped, deep blue flowers with contrasting yellow stamens appear in loose, drooping, clusters blooms in spring. It performs best in cool summer climates. Odd-pinnate compound bright green leaves appear ladder-like, hence the common name. The flowers attract bees and pollinators.

The plant was used as a medicinal herb in ancient Greece. The ancient Greeks used the root to treat dysentery, toothaches, and animal bites. The plant was also found in a few European pharmacies during the nineteenth century and was used as an antisyphilitic agent and to treat rabies.

Botanical Name Polemonium caeruleum
Common Name Greek valerian
Family Polemoniaceae
USDA Zone 4 thru 8
Light Requirement Part Shade to Full Shade
Season(s) of interest spring
Height and Spread 1.5-2ft x 1.5-2ft (45-60cm x 45-60cm)
Flower Color Deep Blue
Attracts Wildlife Attracts Pollinators, Rarely Browsed by Mammalian Herbivores
Additional Information Not Native to the US Midwest. Native to northern and central Europe, northern Asia. Also Known as Jacob’s ladder.
Location in Lurie Garden North Dark Plate, Southeast Dark Plate

Average Flowering Time