Choose a country to see content specific to your location

A picture of a Jacob's ladder

Jacob's ladder

Polemonium viscosum

Partial Shade
Moderate watering
Half-hardy

10a

USDA zone

-1°C

Minimum temperature

Expected size

Height
Spread

80cm

Max

20cm

Min

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Jacob's ladder

Polemonium viscosum
A photo of Jacob's ladder

Jacob's ladder Overview

This species is a clump forming perennial with basal pinnate leaves to 20cm. The leaves are palmately 3-5 lobed and whorled. The flowers are funnel-shaped and blue, they are borne in terminal cymes in the summer.

Common problems with Jacob's ladder

How to propagate Jacob's ladder

Cuttings

Propagate the annuals from seed and the perennials from seeds or cuttings.

Seed

Other uses of Jacob's ladder

Grown for their flowers. Borders.