About Amethyst

Gumdrop-shaped silver cones and long, thin silver bracts become silvery blue. Serrated leaves are green with lighter veins and fringed edges.

From the parsley and carrot family, sea hollies are not related to the hollies or thistles they somewhat resemble. They look great with small ornamental grasses and with yellow flowers.

About Sea Holly

Offbeat, fanciful plants seem to be from an alien planet. Minute flowers are packed into small cones with a collar of spiny bracts (petal-like leaves) so that the whole resembles a bizarre daisy. Stiff, branching stems with prickly leaves. Color remains when cut or dried. Best in hot, full sun and actually likes poor, dryish soil. Drought-tolerant and deer-resistant. July–September. See also Rattlesnake Master in the Native Perennials.

Pot Size & Price
2.5-in. pot
$4.00
Height
24"
Catalog
P432
Plant Traits
Bees
Poisonous

Other varieties of Sea Holly

Eryngium planum, blue-lavender prickly flowers
Photo by Bernard DuPont from the Wikimedia Commons

Blue Eryngo

Catalog
P433
Blue Glitter Eryngium close up, lavender spiky collar around central flower
Photo by Captain-tucker from the Wikimedia Commons7.JPG

Blue Glitter

Catalog
P434