Sisyrinchium striatum

RHS Plant Profile
pale yellow-eyed grass

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pale yellow-eyed grass RHS
pale yellow-eyed grass RHS

Other common names

yellow Mexican satin flower

Synonyms

Phaiophleps nigricans

Herbaceous Perennial
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A clump-forming perennial, to 80cm tall, with fans of grey-green, narrow, linear to lance-shaped leaves. In summer, stiff, upright stems carry clusters of pale yellow, star-shaped flowers along their length

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or East–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Iridaceae
Native to GB/Ireland
No
Foliage
Semi evergreen
Habit
Bushy
Genus
Sisyrinchium can be annuals or rhizomatous perennials forming a clump of narrowly sword-shaped leaves with erect stems carrying solitary or clustered, star-shaped or bell-shaped flowers in spring or summer
Name Status
Correct
Plant Range
Argentina, Chile

How to Grow

Cultivation

Grows best in sun in a well-drained, moist soil. Dislikes wet winters and excessively cold temperatures. May have the potential to become a nuisance as seeds prolifically

Propagation

Propagate by seed or by division

Suggested planting locations and garden types

  • City and courtyard gardens
  • Gravel garden
  • Cottage and informal garden
  • Flower borders and beds

Pruning

Remove old, blackened foliage after flowering

Pests

Generally pest-free

Diseases

Generally disease-free