
Jacob's Ladder gets its name from the arrangement of its leaves – pairs of opposite leaflets resembling a ladder. In early summer, erect stems rise up from the bright green foliage carrying clusters of bell-shaped, lavender-blue flowers. A cottage garden favourite, Jacob's Ladder is happiest in partial shade, and looks equally at home in a wildlife garden setting or in grass. Although it is short-lived, it self-seeds freely.
How to care for Polemonium caeruleum:
Cut the plant back after flowering to encourage a second flush of flowers. In autumn cut the faded flowerheads down to the ground and compost the dead stems.
Eventual height:
0.8m
Eventual spread:
0.3m
Position:
Full sun
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Fully hardy
-
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
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Add to basket
Delivery options (pick your preferred option at checkout)
Goes well with
Knautia macedonica
Macedonian scabious
From £3.99
View options
2 litre pot | £19.99 |
|
3 × 2 litre pots | £49.99 |
|
9cm pot | £8.99 |
|
3 × 9cm pots | £14.95 |
|
approx 40 seeds | £3.99 |
|
View details
Lathyrus latifolius 'Rosa Perle'
everlasting sweet pea (syn. Pink Pearl)
From £11.99
View options
3 litre pot | 60cm cane | £23.99 |
|
|
9cm pot | £11.99 |
|
|
2 + 1 FREE 9cm pots | £23.98 |
|
View details

Jacob's Ladder gets its name from the arrangement of its leaves – pairs of opposite leaflets resembling a ladder. In early summer, erect stems rise up from the bright green foliage carrying clusters of bell-shaped, lavender-blue flowers. A cottage garden favourite, Jacob's Ladder is happiest in partial shade, and looks equally at home in a wildlife garden setting or in grass. Although it is short-lived, it self-seeds freely.
How to care for Polemonium caeruleum:
Cut the plant back after flowering to encourage a second flush of flowers. In autumn cut the faded flowerheads down to the ground and compost the dead stems.
Eventual height:
0.8m
Eventual spread:
0.3m
Position:
Full sun
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Fully hardy
-
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
Product options
Add to basket
Delivery options (pick your preferred option at checkout)
Goes well with
Knautia macedonica
Macedonian scabious
From £3.99
View options
2 litre pot | £19.99 |
|
3 × 2 litre pots | £49.99 |
|
9cm pot | £8.99 |
|
3 × 9cm pots | £14.95 |
|
approx 40 seeds | £3.99 |
|
View details
Lathyrus latifolius 'Rosa Perle'
everlasting sweet pea (syn. Pink Pearl)
From £11.99
View options
3 litre pot | 60cm cane | £23.99 |
|
|
9cm pot | £11.99 |
|
|
2 + 1 FREE 9cm pots | £23.98 |
|
View details