Sisyrinchium 'Janet Denman' (v)
blue-eyed grass 'Janet Denman'
A semi-evergreen, clump-forming perennial to 20cm high and wide producing upright, sword-shaped, greyish-green leaves with cream-striped margins. Clusters of star-shaped flowers borne from late spring into summer are a pale brown-orange colour with bright yellow centres and purple stripes and streaks at the base of each petal
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Brown Orange | Green Grey Silver Cream | ||
|---|---|---|---|---|
| Summer | Brown Orange | Green Grey Silver Cream | ||
| Autumn | Green Grey Silver Cream | |||
| Winter | Green Grey Silver Cream |
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
Accepted
How to grow
Cultivation
Grow in a poor to moderately fertile, well-drained, neutral to slightly alkaline soil in full sun. Protect from excessive winter wet. Benefits from regular division. May have the potential to become a nuisance as seeds prolifically
Propagation
Propagate by division in spring
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Gravel garden
- Patio and container plants
- Rock garden
- Flower borders and beds
Pruning
No pruning required
Pests
Generally pest-free
Diseases
May be susceptible to root rot
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