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Sisyrinchium californicum

Sisyrinchium californicus
Golden-eyed Grass

4,8/5
4 reviews
1 reviews
0 reviews
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0 reviews

I bought two pots, one of them had a foliage that was duller and softer. Unfortunately, it didn't survive the winter. The other one is magnificent. It's a very pretty little evergreen plant that flowers for a long time and has evergreen foliage, which is a real plus in a small flowerbed.

Marie, 28/02/2022

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This plant carries a 24 months recovery warranty

More information

Value-for-money
A perennial evergreen with bright yellow star-shaped flowers. It is adapted to drought but still likes moisture. Plant in a rockery or for the well-drained surroundings of ponds.
Flower size
2 cm
Height at maturity
15 cm
Spread at maturity
15 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -15°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 June to August
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Description

Sisyrinchium californicum is a small perennial cousin of Iris, with bright yellow star-shaped flowers for a long time in summer. It is adapted to drought, but likes some moisture. Suitable for rockeries and well-drained pond surroundings.

 


Originally from the American West, Sisyrinchium californicum belongs to the Iridaceae family. It is found along the coast of California, in Oregon, in the state of Washington, in Canada, in wet or marshy areas, in dunes, heathlands or meadows and on the banks of ponds and watercourses. This perennial will reach 10 to 20 cm (4 to 8in) high, with moderately rapid growth.
The Sisyrinchium forms a dense, compact tuft, spreading in all directions. From late spring to late summer, solitary star-shaped, very bright yellow flowers, enhanced by yellow stamens, appear among the green foliage. The plant produces many seeds that germinate easily. It develops grass-like, (15 cm (6in)), evergreen, blue-green to grey-green, leathery foliage. The seedlings closely resemble grass.

Plant Sisyrinchium californicum in any moist but well-drained to occasionally dry, even poor and rocky soil. It needs sun to flower. This perennial is moderately hardy, mulch the mother plant if severe frost is expected. If you wish to prevent self-seeding, remove the faded and unsightly blackened flower stalks.

Sisyrinchium californicum is attractive in many ways. It is essential in Asian-inspired gardens for its clean shapes, and it will brighten up waterfalls and artificial streams with its self-sown seedlings, appearing here and there to give a natural look. This perennial will look good in rockeries, pots, borders, waterfalls, streams, banks or flower beds..


Sisyrinchium californicum in pictures

Sisyrinchium californicum (Flowering) Flowering
Sisyrinchium californicum (Foliage) Foliage

Plant habit

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

Flowering

Flower colour yellow
Flowering time June to August
Inflorescence Spike
Flower size 2 cm

Foliage

Foliage persistence Semi-evergreen
Foliage colour green

Botanical data

Genus

Sisyrinchium

Species

californicus

Family

Iridaceae

Other common names

Golden-eyed Grass

Origin

Cultivar or hybrid

Product reference7819361

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Planting and care

Plant Sisyrinchium californicum in any moist but well-drained to occasionally dry, even poor and rocky soil. It requires the sun to flower. This perennial is moderately hardy, and it is advisable to mulch the mother plant if heavy frost is expected. To avoid self-seeding, remove faded and unsightly flowers.

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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 Edge of border, Container
Hardiness Hardy down to -15°C (USDA zone 7b) 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, moist and well-drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
4,8/5
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