Silver Sea Holly Seeds grow into a perennial flowering plant with silvery foliage and unique globe-shaped flower heads. It is suitable for borders, rock gardens, and coastal landscapes. The plant prefers full sun, well-drained soil, and dry to moderate growing conditions.
Features
- Perennial plant with silver foliage
- Suitable for borders and rock gardens
- Tolerates dry growing conditions
- Prefers sunny locations
- Grows well in well-drained soil
Specifications
- Scientific name: Eryngium spp.
- Common name (US): Sea Holly
- Seed type / Variety: Silver Sea Holly Seeds
- Growth habit: Herbaceous perennial
- USDA zones: 4 to 9
- Planting season: Spring or fall
- Growing season: Summer
- Sowing season: March to May; September to October
- Germination time and conditions: 14 to 30 days with moist, well-drained soil
- Sunlight requirements: Full sun
- Soil requirements: Sandy, well-drained soil
- Watering needs: Low to moderate watering
- Mature plant size: 18 to 36 inches tall
- Plant spacing: 12 to 18 inches apart