trefle.io · Taken Jul 9, 2021 by Cédric Jankowiak (cc-by-sa)
Apiaceae
Eryngo
Eryngium maritimum
Also known as Button snakeroot, Rattlesnake master, Sea holly, Eryngium marinum
Native Plants · Coastal · Sea Holly · Drought Tolerant · Perennial · Sandy Soil · Mediterranean · Silver Foliage · Wildlife Garden · Border Plant · Eryngium
Sea holly thrives in full sun and well-drained, sandy or gravelly soil, making it an excellent choice for coastal or drought-prone gardens. Water deeply but infrequently, as it dislikes waterlogged conditions and develops deep roots over time. Once established, it is remarkably tough and requires little attention beyond occasional tidying of spent flower heads.
Growing conditions
The details behind the basics
- Daily light
- 8 hours
- Watering
- Water deeply but infrequently; allow soil to dry between waterings · Every 10-14 days
- Maintenance
- Low
- Soil pH
- 7–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Flowers
- No
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Algeria, Baleares, Baltic States, Belgium, Bulgaria, Corse, Cyprus, Denmark, East Aegean Is., France, Germany, Great Britain, Greece, Ireland, Italy, Kriti, Krym, Lebanon-Syria, Libya
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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