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Camassia Blue Heaven

Camassia cusickii x leichtlinii Blue Heaven
Cusick's Quamash x Large Camas, Cusick's Camas x Leichtlin's Camas

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From the basal clump of the Camassia, tall flower spikes emerge in spring, with spikelets ranging from 10 to 30 cm in length, opening from bottom to top into open star-shaped flowers for a splendid display in May and June. In this cultivar, the flowers are sky blue. It should be grown in moist to wet soil, in either full sun or light shade.
Flower size
4 cm
Height at maturity
65 cm
Spread at maturity
40 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil, Damp soil
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Recommended planting time August to October
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Flowering time April to May
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Description

Camassia 'Blue Heaven' is a cultivar of this attractive perennial bulbous plant with a bushy habit, which is Camassia leichtlinii, with stunning sky-blue flowers. It produces impressive star-shaped flower spikes of a splendid light blue shade, highlighted by a small green centre and yellow anthers on medium-sized flower spikes in late spring. The flowers of Camassia open from the bottom to the top.

Camassia, also known as Quamash, is now part of the Asparagaceae family, like asparagus. Native to Oregon in the northwest United States, the plant is very hardy. It can be found in borders, rockeries, fields, as well as rocky gardens, as adapts easily. Camassia leichtlinii takes its name from the German Max Leichtlinn, a 19th-century German horticulturist specialising in bulbs. 'Blue Heaven' is a cultivar that reaches a height of 60 to 75 cm when mature. Its linear leaves are bright green and measure from 20 to 60 cm long. They form a basal tuft from which the flower stems emerge. The large open star-shaped flowers are held on flower spikes from 10 to 30 cm long. They appear in May and June. The inflorescence opens from the bottom to the top. The 4 cm in diameter flowers are composed of 6 petals that twist as they fade. Camassia is a vegetable plant that has an edible bulb, consumed by Native American tribes. However, these bulbs are not liked by rodents, which allows the plant to be among the most resistant bulbous plants like daffodils.

Camassia leichtlinii 'Blue Heaven', a plant of wet meadows in its natural habitat, grows in full sun or partial shade in cool to moist, fertile and humus-bearing soil. It tolerates slightly heavy clay soils as long as they have drainage in winter. Planted with spring bulbs such as ornamental garlic, Fritillaries or Tulips, it brings borders to life with its beautiful, large flowers. Its unsightly foliage after flowering can be hidden by perennials with foliage or later flowering, such as Geraniums in the sun or Hostas and Heucheras in partial shade. In a cottage garden, Delphiniums or bellflowers take over. You can grow Camassia in a container on a terrace or balcony. Its flowers are also beautiful in bouquets.

Plant habit

Height at maturity 65 cm
Spread at maturity 40 cm
Growth rate normal

Flowering

Flower colour blue
Flowering time April to May
Flower size 4 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Camassia

Species

cusickii x leichtlinii

Cultivar

Blue Heaven

Family

Asparagaceae (Liliaceae)

Other common names

Cusick's Quamash x Large Camas, Cusick's Camas x Leichtlin's Camas

Botanical synonyms

Camassia leichtlinii 'Blue Heaven', Camassia cusickii 'Blue Heaven'

Origin

Cultivar or hybrid

Product reference226910

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Planting and care

Place Camassia Blue Heaven in partial shade or full sun in fertile, humus-bearing, well-drained soil. It also tolerates heavy and clay soils, provided that the drainage is improved so that the bulbs can survive the winter without any problems. Plant it in autumn at a depth of 10 cm and space the bulbs 20 cm apart. Water it regularly but not excessively to avoid the plant rotting due to stagnant moisture. Camassia naturalises very well when left undisturbed. Mulch in winter in regions with harsh winters. Once the flowers have faded, remove the flower stalks, leaving the stem. Also, remove the foliage when it turns yellow. The perennial returns each year with increasing vigour and more abundant inflorescences. Aphids and slugs may attack Camassia, but they cause very little damage as the plant is very robust.

Planting period

Recommended planting time August to October
Planting depth 10 cm

Intended location

Suitable for Meadow
Type of use Border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 25 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil moisture Moist soil, Damp soil, Well-drained soil

Care

Pruning No pruning necessary
Soil moisture Moist soil, Damp soil
Overwinter Can be left in the ground

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