Eryngium yuccifolium
rattlesnake-master
An evergreen perennial with sword-shaped, spiny-edged, blue-grey leaves and branched stems bearing small, egg-shaped white flower-heads in late summer
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Blue Grey Silver | |||
|---|---|---|---|---|
| Summer | White | Blue Grey Silver | ||
| Autumn | Blue Grey Silver | |||
| Winter | Blue Grey Silver |
Position
- Full sun
Aspect
East–facing or South–facing
Exposure
Exposed or ShelteredDrought resistance
Yes Hardiness
H4Botanical details
- Family
- Apiaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Clump forming
- Genus
Eryngium can be annuals, biennials or perennials with simple or divided leaves, often spiny edged, and cone-like flower-heads often surrounded by an involucre of conspicuous spiny bracts
- Name status
Correct
- Plant range
- C & E USA
How to grow
Cultivation
Grow in dry, well-drained, poor to moderately fertile soil in full sun. Protect from winter wet
Propagation
Propagate by seed or division
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Gravel garden
- Flower borders and beds
Pruning
Cut back after flowering
Pests
May be susceptible to leaf and bud eelworms, and slugs and snails
Diseases
May be susceptible to root rot and powdery mildews
Get involved
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