Magnify glass

Polemonium caeruleum Brise d'Anjou Blanjou


Jacobu2019s Ladder

A classic addition to any perennial herbaceous border

A clump forming plant noted for its outstanding fern-like leaves that are handsomely edged with cream. As if that wasn’t enough there are also beautiful bell-shaped flowers to enjoy from late spring into the summer.


Likes a lightly shaded position, although happy in a sunnier spot if kept well watered. Ideal in a bed or a border, and looks fabulous in a woodland garden or a container.


Best in a moist, well drained soil. Remove faded flowers to encourage more. Use a good quality potting compost for container growing.

Plant details

In depth plant information

Property Value
Plant type Perennial herbaceous
Flower colour
Foliage colour
Typically available April - September
Season of interest Summer
Flowering June - August
Evergreen No
Plant height 50 cm - 100 cm
Plant width 10 cm - 50 cm
Fragrant flowers No
Attracts bees Yes
Attracts butterflies Yes
Plant height in 5 years 75 cm
Hardiness zone (?) H4

Will perform best in these conditions

Property Value
Soil type Chalk, Clay, Loam, Sand
Light exposure Full sun, Part shade
Soil drainage Medium
Planting instructions

Water the plant in its pot thoroughly before planting – give it a good soaking. Prepare the area by digging a hole twice the size of the pot. Dig compost into the base of the hole. Remove the pot and position the plant in the hole, with the top of the rootball about level with the surrounding soil. Refill the planting hole with a mixture of garden soil and compost, firming as you go. Water in well and keep well watered during the plant's first year.

Planting site Patio container, Wildlife garden, Wildlife garden, Coastal or drought resistant, Cottage garden, Informal garden, City garden, Courtyard garden, Flower border and beds

Typically available

From April to September