Polemonium pulcherrimum 'Blue Master'

Jacob's Ladder

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Common Name: 

Jacob's Ladder

Plant Type: 

Flower color: 

Foliage color: 

Green

Sun (From 0 to 5): 

Water (From 0 to 5): 

Maximum temperature: 

40°C

Minimum temperature: 

7°C

Maximum height: 

35 cm

Maximum width: 

30 cm

Jacob's Ladder (Polemonium pulcherrimum 'Blue Master') - Description

A handsome plant with fern-like leaves that grow upwards like a ladder. Small violet-blue flowers 1" across in clusters. A variety that blooms first year, if started early. Shelter from hot, humid conditions, and keep well-drained.

Jacob's Ladder (Polemonium pulcherrimum 'Blue Master') - Growth

Grow in full sun or partial shade. Taller species work well in a border or woodland garden. The smaller alpine species make nice additions to a rock garden, scree bed, or alpine house. P. brandegeei and P. pauciflorum are often short lived species.

Jacob's Ladder (Polemonium pulcherrimum 'Blue Master') - Planting

Divide in spring, or grow from seed in spring or fall in containers in a cold frame (for protection and to ensure hardiness).

Jacob's Ladder (Polemonium pulcherrimum 'Blue Master') - Pest

The only real problem is powdery mildew.

Jacob's Ladder (Polemonium pulcherrimum 'Blue Master') - Interesting facts

Polemonium is endemic to the alpine regions of Europe, Asia, North America, and Central America. Species are often found near streams or in damp meadows, woodlands, scrubs. Some grow in high altitude mountains.

Jacob's Ladder (Polemonium pulcherrimum 'Blue Master') - Soil and irrigation

Tall varieties prefer moist, well-drained soil. Smaller species need sharply drained, gritty soil.

Polemonium pulcherrimum 'Blue Master' - Jacob's Ladder - Photos