Moist Sun Partial Shade

Polemonium

Polemonium spp.

Full Sun
High Water

Special Features

Deer-Resistant Native Pollinator-Friendly

Has clusters of bell-shaped flowers and ladder-like leaves. Great for woodland gardens, attracting bees and butterflies.

Plant Specifications

Bloom Time May to June
Hardiness Zone 2-7
Mature Height 1-3 feet
Mature Width 1-2 feet
Growth Rate Moderate
Maintenance Level Low
Soil
Moist Well drained
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Growing Polemonium on Martha's Vineyard

Polemonium caeruleum, Jacob's ladder, is a cool-season perennial of elegant demeanor that thrives in the partially shaded, consistently moist borders of Martha's Vineyard, producing clear blue and white flowers above finely pinnate foliage from May through June in a display that is characteristically refined and never showy. It performs best in the sheltered, partially shaded garden rooms of properties in Edgartown and West Tisbury where afternoon shade and consistent moisture extend its performance well into summer, preventing the early dormancy that warm, dry conditions can trigger. The ornamental foliage provides season-long textural interest even after bloom, and the plant self-seeds modestly to maintain naturalistic colonies in favorable garden conditions.

Deer resistance is generally reliable. Estate Care professionals incorporate Jacob's ladder into sophisticated shade and part-shade border programs where refined botanical character, spring flower interest, and season-long foliage elegance are all valued.

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