- Botanical name: Polemonium caeruleum 'White Pearl'
- Common name: Jacob's ladder
- Family: Polemoniaceae
- Plant Type: Perennial
White
Green
- Key features:
- Flowers
Jacob’s ladder, Polemonium caeruleum, is a lovely clump-forming perennial, requiring little maintenance. In early summer it produces bell-shaped flowers,
Plants can be propagated by sowing seed in autumn or spring, or by dividing plants in spring. Polemonium caeruleum ‘White Pearl’ forms a low mound of cream-edged green leaves. In mid-to late spring, clusters of brilliant white flowers hang on upright stems. It’s ideal for using as ground cover at the front of shady borders and edging paths.
For best results, grow Polemonium reptans ‘White Pearl’ in moist but well-drained soil, in partial shade. Cut back after flowering to encourage a second flush of blooms. In autumn cut back again to ground level.
Read our full guide to growing polemonium.
How to grow Polemonium 'White Pearl'
-
Plant size
75cm height
30cm spread
-
Aspect
North facing, east facing
-
Position in border
Middle
- Sun exposure: Dappled shade, full shade, partial shade
- Hardiness: Hardy
- Soil type: Chalky / alkaline / clay / heavy / moist / well drained / light / sandy
Plant calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant | ||||||||||||
| Plant |
J
Do not Plant in January |
F
Do not Plant in February |
M
Do not Plant in March |
A
Do not Plant in April |
M
Do Plant in May |
J
Do Plant in June |
J
Do Plant in July |
A
Do Plant in August |
S
Do Plant in September |
O
Do not Plant in October |
N
Do not Plant in November |
D
Do not Plant in December |
| Flowers | ||||||||||||
| Flowers |
J
Plant does not flower in January |
F
Plant does not flower in February |
M
Plant does not flower in March |
A
Plant does not flower in April |
M
Plant does flower in May |
J
Plant does flower in June |
J
Plant does not flower in July |
A
Plant does not flower in August |
S
Plant does not flower in September |
O
Plant does not flower in October |
N
Plant does not flower in November |
D
Plant does not flower in December |
| Divide | ||||||||||||
| Divide |
J
Do not Divide in January |
F
Do not Divide in February |
M
Do Divide in March |
A
Do Divide in April |
M
Do Divide in May |
J
Do not Divide in June |
J
Do not Divide in July |
A
Do not Divide in August |
S
Do not Divide in September |
O
Do not Divide in October |
N
Do not Divide in November |
D
Do not Divide in December |
Polemonium 'White Pearl' and wildlife
Polemonium 'White Pearl' has no particular known value to wildlife in the UK.
Is Polemonium 'White Pearl' poisonous?
Polemonium 'White Pearl' has no toxic effects reported.
No reported toxicity to Birds
No reported toxicity to Cats
No reported toxicity to Dogs
No reported toxicity to Horses
No reported toxicity to Livestock
No reported toxicity to People
