The Plants
Eryngium alpinum
sea holly
£7.99
Large-flowered sea-holly with sculpted heads in a steely grey or rich royal blue. Hard to beat and loved by pollinators.
Type
- Perennials
Foliage: Deciduous
Hardiness: Hardy
Vigour: Fast growing
Uses
- Beds and borders
- Flower arranging
- Gravel garden
Special features
- Attractive to wildlife
- Low maintenance
- Attractive to bees
- Architectural
Care instructions
Although you can cut back flower stems after flowering the seedheads are a very attractive feature so are usually left over winter. Grow in fairly dry, well-drained soil that is poor to moderately fertile. Full sun is essential as is protection from winter wet.
Dimensions
Size: Medium
Pot size: 2 litre
Eventual height: 90cm
Eventual spread: 40cm
Positions
- Sun
Aspects
- South
- East
- West
Soil types
- Sandy
- Normal
Soil pH ranges
- Acid
- Neutral
- Alkaline
Special conditions
- Coastal