Species Jacob's ladder

Jacob's ladder

Polemonium caeruleum 'Blanjou' BRISE D'ANJOU

Jacob's Ladder (Polemonium caeruleum 'Blanjou' Brise D'Anjou) is an exquisite and unique perennial that blooms from spring to summer. Its cream-colored flowers are clustered along the stalks of its blooming stems and tufted foliage. As an easy to grow and low maintenance plant, its stunning and airy display in shade gardens or rock gardens is sure to be admired. Each stem of Jacob's Ladder will reach up to two feet in maximum height, making it a great display among smaller plants. The light blue flowers of 'Blanjou' stand out as one of the finest cultivars of this historic flower.

Cycle:

Herbaceous Perennial

Watering:

Average

Propagation:

Division,Cutting,Seed Propagation,Layering Propagation

Hardiness Zone:

4 - 8

Flowers:

Deep blue Flowers In Spring

Sun:

Full sun only if soil kept moist, Part sun/part shade

Fruits:

blue,purple Fruits Ready In Summer

Leaf:

Yes

Leaf Color:

green,purple

Growth Rate:

High

Maintenance:

Moderate

watering

Jacob's ladder should be watered regularly; however, it does not like wet roots. When the soil feels dry to the touch, it is time to water. Be sure to water directly into the soil and not onto the leaves. In the summer months, Jacob's ladder will need to be watered every 5-7 days; in the spring and fall water every 7-10 days; and in the winter water only about once everyweek or 2. When watering, be sure to give the plant enough to moisten the soil thoroughly. Make sure the soil drains well as this plant does not favor soggy roots.

sunlight

Jacob's ladder (Polemonium caeruleum 'Blanjou' BRISE D'ANJOU) is a shade-loving plant species that thrives best when it is grown in dappled or partially shaded areas. It performs best when it receives bright indirect sunlight for 4-5 hours each day, with some direct sun in the morning or late afternoon. This plant is not tolerant of full sun and will become scorched and bleached if exposed to it for too long. During the summer months, it is best to keep Jacob's ladder out of direct sunlight during the hottest parts of the day.

pruning

Jacob's ladder (Polemonium caeruleum 'Blanjou' BRISE D'ANJOU) should be pruned in late winter or early spring just before new growth begins. Prune only light and immediately after flowering, as heavy pruning will reduce flower production. Trim off any dead or damaged stems and thin out the center of the plant to promote new growth and air circulation. Ensure that approximately half the stems are cut from the base of the clump to promote an even shape and good air flow. Remove any weak stems and lightly trim the side stems to improve shape and reduce height. Ultimately, you should aim for a rounded shape that is set around 25 centimeters (10 inches) tall.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Jacob's ladder typically starts flowering in April or May.

Harvest Fruit

The best time to start harvesting the fruits from Polemonium caeruleum 'Blanjou' BRISE D'ANJOU is usually in July or August.

Hardiness Map