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Polemonium caeruleumJacob's Ladder

Hardy Perennial

What is Hardy Perennial?
A plant that lives for more than two years.
Capable of withstanding outdoor winter temperatures down to -15C.

FROM £16.99

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Nodding bell-shaped blue flowers

Pretty ladder-like foliage

A lovely addition to a shady spring/summer border

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Please note: This product cannot be delivered outside the United Kingdom.

Height Up to 80cm (31in)
Spread Up to 30cm (12in)

Hardy Perennial

cottage gardenscut flower gardenwoodland garden

sun or semi shadedappled shadeshade

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Flowering Months

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Description

Polemonium caeruleum is a dainty perennial that will readily seed about between other plants creating a naturalistic, cottage-garden look. From clumps of sparse foliage arise tall, upright stalks topped with clusters of nodding, blue flowers with golden stamens. Flowering May to June, it makes a charming addition to early summer borders in part shade, woodland gardens or beneath deciduous trees and shrubs. It is perfect for wildlife-friendly gardens as the flowers are a valuable source of early nectar and pollen for insects emerging from hibernation. The pretty foliage of Polemonium caeruleum is an attractive feature in itself, forming little leaflets arranged into a ladder pattern which has earned it the name of ‘Jacobs Ladder’. Height: 80cm (31in). Spread: 30cm (12in).

Plant height and spread is seasonal therefore we list by pot size rather than a defined plant size. The height and spread of the plant delivered will vary depending on the season, meaning arrival images are an indication only.

Show Codes

1 x 2 Litre Potted Plant (KF6179)

1 x 1 Litre Potted Plant (64558)

How to Grow
Grow Polemonium plants in semi shade. Polemonium plants prefer a well drained, moist, fertile soil. On drier soils, incorporate plenty of well rotted manure or compost prior to planting.
More Info
Water plants regularly throughout summer until fully established. Deadhead faded Polemonium flowers regularly to encourage more blooms throughout the season. Lift and divide overcrowded clumps of Jacobs Ladder in spring to maintain their vigour.
Delivery

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Thompson & Morgan strives to ensure that all its plants are delivered to you in the perfect condition for planting. While the majority of our nursery plants cope well with slight delays in intransit, sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this for some of our smaller plug products and tender bedding and vegetable lines, which do not respond well to the extra journey time. So regretfully while we offer the majority of our live plant offering nationwide, we are unable to ship plugs, begging plants and tender vegetable plants to the following areas: HS, IV41-IV49, IV51, IV55-56, KW15-KW17, PA34, PA41-48, PA60-PA78, PA80, PH40-PH44, TR21-TR24, ZE1-ZE3

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