Jacob’s Ladder Seeds (Polemonium caeruleum)

Jacob’s Ladder is a graceful perennial named for its ladder-like leaves and clusters of charming, sky-blue, bell-shaped flowers. Blooming in late spring to early summer, it adds elegance to borders, woodland gardens, and cottage-style plantings. Easy to grow and loved by pollinators, this hardy perennial thrives in partial shade and cool conditions.

What Makes It Special

• Sky-blue bell-shaped flowers with golden stamens

• Attractive ladder-like foliage

• Excellent for shaded borders and pollinator gardens

Key Features

• Botanical name: Polemonium caeruleum

• Hardy perennial

• Height: 60–90 cm

• Bloom time: Late spring to early summer

Ideal For

• Woodland and cottage gardens

• Shaded borders

• Pollinator-friendly plantings

Sowing

• Sow indoors Feb–Apr or outdoors Apr–Jun

• Cover seeds lightly with soil

• Germination: 21–30 days at 15–20°C

• Space plants 30–40 cm apart

• Flowers from the second year onward