|Their tall, striking foliage and thistlelike clusters of flowers make them a favorite border or rock garden plant. Many are drought-tolerant. The summer-blooming, soft blossoms harden in prickly, long-lasting cut and dried flowers. Tops of flower spikes bloom first, while flowers on lower, side-branching stems bloom later. The blue flowers have thimblelike domes surrounded by steel-blue, petallike leaves. Need full sun and good drainage. Start by root cuttings, as they do not like transplanting, or by seed. Space plants about 1 foot apart.
These clump-forming plants die after producing thistle-like flowers of blue. 'Silver Ghost' cultivar has small white flowers with blue stems.
Attributes - Eryngium giganteum 'Miss Wilmot's Ghost'
Plant Type: Biennial
Bloom Season: Mid Summer through Late Summer
Flower Color: Blue
Height: 3 ft. to 4 ft.
Width: 2 ft. 6 in.
Sunlight: Full Sun
Climate: Zones 5, 6, 7, 8
Notes: Thrives in Dry Climates. Cut Flowers, Drought Tolerant, Low Maintenance, Showy Flowers.