Polemonium caeruleum 'Blanjou' BRISE D'ANJOU

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Polemonium caeruleum 'Blanjou' BRISE D'ANJOU

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Kemper Code: U490

Common Name: Jacob's ladder
Zone: 4 to 8
Plant Type: Herbaceous perennial
Family: Polemoniaceae
Missouri Native: No
Native Range: None
Height: 1.5 to 2 feet
Spread: 1.5 to 2 feet
Bloom Time: April - May
Bloom Color: Violet blue
Sun: Part shade to full shade
Water: Medium
Maintenance: Medium

Plant Culture and Characteristics

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Uses:		Wildlife:	Flowers:	Leaves:	Fruit:
Hedge	Suitable as annual	Attracts birds	Has showy flowers	Leaves colorful	Has showy fruit
Shade tree	Culinary herb	Attracts	Has fragrant flowers	Leaves fragrant	Fruit edible
Street tree	Vegetable	hummingbirds	Flowers not showy	Good fall color	Other:
Flowering tree	Water garden plant	Attracts	Good cut flower	Evergreen	Winter interest
Gr. cover (<1')	Will naturalize	butterflies	Good dried flower		Thorns or spines

General Culture:

Grow in average, medium moisture, well-drained soils in part shade to full shade. Prefers rich, humusy, consistently moist soils. Soils must not be allowed to dry out. Plants may be cut back to basal foliage after bloom to tidy the planting and to encourage a possible late summer rebloom.

Noteworthy Characteristics:

‘Blanjou’ BRISE D'ANJOU is a Jacob’s ladder cultivar that features variegated foliage. It is a naturally occurring mutation that was discovered growing at a nursery in Brissac-Quince, France. It is an erect, clump-forming perennial that typically forms a foliage mound to 18-24” tall and as wide. Odd-pinnate compound leaves (to 27 leaflets each) appear ladder-like, hence the common name. The leaves of this cultivar are bright green variegated with creamy yellowish-white edges. Cup-shaped, violet-blue flowers appear in loose, drooping, terminal clusters in spring (April-May in the St. Louis area). Specific epithet means sky blue in reference to the flower color. U. S. Plant Patent #9,781 issued January 14, 1997.

Problems:

No serious insect or disease problems. Leaf spot and powdery mildew can be problems, particularly in humid climates. Foliage may scorch in too much sun. Leaflet tips will brown up if soils are allowed to dry out. Foliage will generally decline and become less attractive as the summer progresses. Watch for slugs.

Uses:

Striking foliage will brighten shady locations in border fronts, woodland gardens, cottage gardens or shade gardens. Also appropriate for shaded areas of rock gardens.