Polemonium caeruleum
Jacob's-ladder
Polemonium caeruleum, or Jacob's-ladder, is native to cool temperate to arctic regions of the Northern Hemisphere. It has lance-shaped leaves and lilac or white coloured flared cup-shaped flowers in Spring and Summer.
Contributed by @tiggrx
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Partial shade
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Occasional watering
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Frost Hardy: 23F (-5°C)
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Moist and free draining
Common name
Jacob's-ladder
Latin name
Polemonium caeruleum
type
Herbaceous Perennials
family
Polemoniaceae
ph
5.0 - 8.5 Acid - Neutral
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Light
Partial shade
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Frost
Frost Hardy: 23F (-5°C)
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Soil
Moist and free draining
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Water
Occasional watering
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
0.40 M
0.60 M
Polemonium caeruleum
Polemonium caeruleum, or Jacob's-ladder, is native to cool temperate to arctic regions of the Northern Hemisphere. It has lance-shaped leaves and lilac or white coloured flared cup-shaped flowers in Spring and Summer.
Flowering
From Mid Spring TO Late Summer
The plant produces cup-shaped, lavender-coloured or white flowers through Spring and Summer.
Planting out
From Mid Spring TO Late Spring
Plant container plants into a part shady or shady site.
Propagating by division
From Early Spring TO Mid Spring
Using a fork dig up plant, try to keep the root ball as complete as possible. Split the root ball at the center with a sharp knife or a spade. Replant the plants to the same depth as the original and keep well watered until established.
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