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Eryngium
Common Name: Miss Willmott's Ghost, Sea Holly
Overview
| Plant Type | Perennial |
| Hardiness Zone | 4 |
Cultivars
| Cultivar | Height | Spread | Blooms | Sun | Planted |
| Big Blue | 3' | 2' | Summer | Full Sun | House garden beds |
| Miss Willmott's Ghost Eryngium giganteum | 30-36" | 18-24" | Summer | Full Sun | House garden beds |
Big Blue
- Plants are long-blooming.
- Stake flowers when it grows tall.
Miss Willmott's Ghost
- Tall biennial
- Increasingly thorny and thistle-like as it comes into bloom.
- Impressive on moonlit nights.
- After it blooms, it dies.
- Taproot plant; transplants poorly.
- Year 1: Basal rosettes form that over-winter as evergreen rosettes.
- Year 2: Plant sends up flowering stems.
Ongoing Management
Fertilization
Don't need to fertilize this plant.
Watering
Plant is drought tolerant.
Withhold water in Fall.
Pruning / Cutting Back
Deadhead to preserve a neat appearance and encourage new blooms.
Or, if left to dry, they make pretty dried flowers.
Prune plant near ground level @ the end of the growing season. Mulch with pine needles.
Propagation
Self-seeding may happen under satisfactory growing conditions, but rarely becomes a nuisance.
Propagation is prohibited for Big Blue cultivar.
More Information
Web Sites
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eMail comments to me at GardeningBoK @ Gmail.com. |