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Cut flowers1 variety
Sea Holly
Eryngium planumDrought-tolerant perennial with steel-blue thistle-like flower heads for fresh and dried work.
PerennialFull sunZone 3-8
No photograph yetSea Holly
Days to maturity
365 daysDays to germ.
7–10 daysSpacing
18–24 inHeight
40–46 inSun
SunHow we grow it
Germination
- Days to germ.
- 7–10 d
- Depth
- 0 in
Culture
- Days to maturity
- 365 d
- Spacing
- 18–24 in
- Height
- 40–46 in
- Sun
- Sun
- Frost
- tender
Harvest
- Handling
- Fresh or dried: Cut when the entire flower head and bracts turn blue or white, depending on the cultivar. Can be hung to air dry, or dry in desiccant to preserve more color.