Please make sure JavaScript is enabled.
 
Jacobs-ladder in the GardenTags plant encyclopedia

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

 
plant Features
  • Jacobs-ladder likes partial shade

    Partial shade

  • Jacobs-ladder likes occasional watering

    Occasional watering

  • Jacobs-ladder is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Jacobs-ladder likes moist and free draining

    Moist and free draining

 
plant information

Common name

Jacob's-ladder

Latin name

Polemonium caeruleum

type

Herbaceous Perennials

family

Polemoniaceae

ph

5.0 - 8.5 Acid - Neutral

  • Light

    Jacobs-ladder likes partial shade

    Partial shade

  • Frost

    Jacobs-ladder is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Soil

    Jacobs-ladder likes moist and free draining

    Moist and free draining

  • Water

    Jacobs-ladder likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Jacobs-ladder is 0.40meters x 0.60meters 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.

 
Subscribe to GardenTags Premium to get personalised planting tasks and more for your entire plant collection
 
Gardeners who are growing this plant
>