Eryngium planum – Sea Holly
This is Blue!!!!
Pictures coming soon
Sea Holly
Family: Apiaceae (ay-pee-AY-see-ee)
Genus: Eryngium (er-RIN-jee-um)
Species: planum (PLAN-um)
Category:
Perennials
Height:
36-48 in. (90-120 cm)
Spacing:
18-24 in. (45-60 cm)
Hardiness:
USDA Zone 5a: to -28.8.° C (-20.° F)
Sun Exposure:
Full Sun
Bloom Color:
Violet/Lavender
Bloom Time:
Mid Summer
Late Summer/Early Fall
Foliage:
Grown for foliage
Silver/Gray
Other details:
Average Water Needs; Water regularly; do not overwater
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
8.6 to 9.0 (strongly alkaline)
Propagation Methods:
By dividing the rootball
From herbaceous stem cuttings
From woody stem cuttings
From softwood cuttings
From semi-hardwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
