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Sisyrinchium angustifolium Devon Skies

Sisyrinchium angustifolium Devon Skies
Narrowleaf Blue-eyed Grass, Grass flower, Blue-eyed grass

4,4/5
18 reviews
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beautiful, well-stocked plants

jean-marie, 05/03/2024

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This plant carries a 24 months recovery warranty

More information

Perennial evergreen, forming light blue star-shaped flowers veined with dark blue. Grass-like foliage. Drought-tolerant, although it still appreciates moisture. To be planted in rock gardens or in well-drained areas near ponds.
Flower size
1 cm
Height at maturity
15 cm
Spread at maturity
20 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -20°C
Soil moisture
Moist soil
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Best planting time March to May
Recommended planting time February to May, September to November
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Flowering time July to August
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Description

Sisyrinchium angustifolium 'Devon Skies' is a small perennial, a relative of the Iris, offering the benefit of beautiful summer flowering with pale blue star-shaped flowers veined with dark blue. Adapted to drought, it nevertheless appreciates some moisture, which makes it suitable for both rockeries and well-drained soil around ponds.

 


Sisyrinchium 'Devon Skies' belongs to the Iridaceae family. It is a descendant of the Sisyrinchium angustifolium, whose origins are found on the shores and meadows of the Bermuda archipelago, in Canada (Labrador), the eastern United States from Texas to Maine and Minnesota. This perennial will reach a height of 10 to 20 cm (4 to 8in), with a moderately rapid growth rate.

The Narrow-leaved Sisyrinchium 'Devon Skies' forms a dense, compact tuft that spreads in all directions. In July and August, solitary star-shaped flowers appear among the green foliage.  These are a very bright pale blue colour, veined with dark blue, enhanced by yellow stamens. The plant produces an abundance of seeds that germinate easily. It develops grass-like, linear ,15 cm (6in) evergreen foliage, with a bluish-green to greyish-green, leathery texture. The young foliage of the seedlings closely resembles that of grass.


Plant Narrow-leaved Sisyrinchium 'Devon Skies' in any fresh but well-drained to occasionally dry soil, even poor and rocky. It requires a sunny position to flower. This perennial is moderately hardy, so it is advisable to mulch the base in anticipation of strong frosts. If you wish to prevent seed formation, you can remove the faded and unsightly inflorescences.

Sisyrinchium 'Devon Skies' is truly attractive in many ways. It is essential in Asian-inspired gardens with its clean shapes, and brightens up waterfalls and streams.  This perennial will be appreciated in rockeries, containers, borders, waterfalls, streams, banks or flower beds.



Sisyrinchium angustifolium Devon Skies in pictures

Sisyrinchium angustifolium Devon Skies (Foliage) Foliage

Plant habit

Height at maturity 15 cm
Spread at maturity 20 cm
Growth rate normal

Flowering

Flower colour blue
Flowering time July to August
Inflorescence Spike
Flower size 1 cm

Foliage

Foliage persistence Semi-evergreen
Foliage colour green

Botanical data

Genus

Sisyrinchium

Species

angustifolium

Cultivar

Devon Skies

Family

Iridaceae

Other common names

Narrowleaf Blue-eyed Grass, Grass flower, Blue-eyed grass

Origin

Cultivar or hybrid

Product reference7819371

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Planting and care

Plant Sisyrinchium angustifolium 'Devon Skies' in any moist but well-drained to occasionally dry, even poor and rocky soil. It requires a sunny position to flower. This perennial is moderately hardy, it is advisable to mulch the plant to protect it from heavy frosts.  If one wishes to prevent the formation of seeds, faded and unsightly inflorescences can be removed.

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Planting period

Best planting time March to May
Recommended planting time February to May, September to November

Intended location

Suitable for Meadow, Rockery, Pond edge
Type of use Border, Container
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Amateur
Planting density 7 per m2
Exposure Sun, Partial shade
Soil pH Neutral
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, Fresh and well-drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
4,4/5

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