Sisyrinchium striatum Aunt May
Sisyrinchium striatum Aunt May
Sisyrinchium striatum Aunt May
Sisyrinchium striatum Aunt May
Pale yellow-eyed grass, Yellow Mexican satin flower
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Available in 1 sizes
Available in 2 sizes
This plant carries a 12 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Sisyrinchium striatum 'Aunt May' is a lovely variegated form of Striated Bermuda Blue-eyed Grass. It has elegant green-grey foliage bordered with cream and is less vigorous and more compact than the species. This rhizomatous and evergreen perennial plant has beautiful pale yellow star-shaped flowers streaked with purple in summer. While adapted to drought, it will be more beautiful in moist soil. It enjoys the sun and well-drained, poor and slightly chalky soils, where it readily self-seeds.
Originally from Argentina, Brazil, and Chile, Sisyrinchium striatum, also known as Phaoiophleps nigricans, belongs to the Iridaceae family. The Aunt May variety, also named 'Variegatum', distinguishes itself with more modest growth and white-cream bordered foliage. This clump-forming perennial will reach 50 cm (20in) high and 30 cm (12in) wide with a moderately fast growth rate.
Blue-eyed Grass forms a dense, compact, and spreading clump. In late spring and summer, flattened flower stems appear among the foliage with 6-petaled, light lemon-yellow flowers with pointed tips in an open cup around a more intense yellow throat, streaked with purple. Their undersides are striped with brown-purple. 5 to 15 flowers are grouped in whorls along the spikes, each spike carrying up to 90 flowers in a season. On each whorl, only 1 to 3 flowers are open at any one time. The plant produces many round, black seeds that germinate easily. It has fan-shaped, grass-like, evergreen, grey-green foliage bordered with cream. The floral stems and foliage gradually turn black during the season. Young seedlings closely resemble grass. This perennial is hardy down to -15°C in porous soil.
Plant Sisyrinchium striatum 'Aunt May' in any moist but well-drained, even occasionally dry, poor and rocky soil. It looks stunning when planted en masse along a sunken path or overhanging the top of a wall. A drought-tolerant and truly attractive plant, essential in wild, Mediterranean, or even Asian-inspired gardens due to its clean shapes. It will brighten up rockeries, the edges of waterfalls and artificial streams, popping up here and there to give a natural look. It pairs well with the grey foliage of artemisias, Crocosmia crocosmiiflora 'Emily McKenzie', bergenia, or Calamagrostis x acutiflora 'Karl Foerster'. This perennial will look good in rockeries, containers, borders, waterfalls, streams, banks, flower beds, or lagoons.
Sisyrinchium striatum Aunt May in pictures
Flowering
Foliage
Plant habit
Botanical data
Sisyrinchium
striatum
Aunt May
Iridaceae
Pale yellow-eyed grass, Yellow Mexican satin flower
Cultivar or hybrid
Planting and care
Plant Sisyrinchium striatum 'Aunt May' in any ordinary, moist but well-drained, occasionally dry, poor, sandy or rocky soil. It needs sun to flower. This perennial is hardy in well-drained and porous soil, but slightly more tender than the species. In very cold climates you may need to mulch the base to protect the plant from heavy frosts. The unattractive, faded and blackened flowers can be removed, if you don't want seedlings.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.