Eryngium pandanifolium
Giant Sea Holly
Family |
Apiaceae |
Genus |
Eryngium |
Species |
pandanifolium |
Category |
Perennials |
Pronunciation |
USDA Hardiness Zone |
8b - 9a |
Canadian Hardiness Zone |
8b |
RHS Hardiness Zone |
H4 |
Temperature (°C) |
-10 to -5 |
Temperature (°F) |
14 - 23 |
Height |
3 m |
Spread |
1 - 2 m |
General Description |
Dense clumps of spiny leaves surround tall stems with large clusters of small pale flowers. |
Landscape |
Flower border, flower bed, single specimen. |
Cultivation |
Grow in moist, well-draining, fertile soil under full sunlight. |
Shape |
Bushy. |
Growth |
Fast |
Pests |
Susceptible to slugs, snails, Phytophthora root rot, and powdery mildew. |
Notable Specimens |
Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. |
Propagation |
Propagate by root cuttings, division, or seeds sown in containers. |