Sisyrinchium californicum 'Yellowstone'
golden-eyed grass 'Yellowstone'
A dwarf, semi-evergreen perennial to 15cm tall, with sword-shaped leaves. In summer, short stems bear a succession of star-shaped, bright yellow flowers to 2cm across. Tolerant of a range of conditions but does best in boggy ground
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Poorly–drained, Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Iridaceae
- Native to GB / Ireland
- No
- Foliage
- Semi evergreen
- Habit
- Clump forming
- 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
Unresolved
How to grow
Cultivation
Grow in moderately fertile, moist to poorly drained soil in full sun. May have the potential to become a nuisance as seeds prolifically
Propagation
Propagate by division or seed
Suggested planting locations and garden types
- Patio and container plants
Pruning
No pruning required
Pests
Generally pest-free
Diseases
Generally disease-free
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