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

About the Author

Maria

Maria is currently growing everything from seed that she can lay her hands on. Also playing with colours and textures to fulfill her garden desires...