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  5. Blue Cap Sea Holly (Eryngium planum 'Blaukappe') - 1 Gallon Pot
Blue Cap Sea Holly (Eryngium planum 'Blaukappe') - 1 Gallon Pot
Eryngium planum are the hardiest and most long-lived of all Sea Holly species. Eryingium planum 'Blaukappe, commonly called 'Blue Cap', is a taller growing cultivar to 3 feet in height featuring abundant electric-blue flowerheads throughout the summer. The thistle-like flowers are made up of tiny flowers packed together in an egg-shaped dome that sits atop a collar of narrow powder-blue bracts. A favorite of florists, the long-lasting flowers are excellent for cutting and use in fresh or dried floral arrangements. Also a favorite of butterflies and beneficial pollinators, but deer and rabbits turn their nose up. A colorful and textural compliment to any garden or container, Blue Cap makes for a striking addition to dry and sunny perennial borders and rock gardens where the soil is very well-drained. This plant does not like wet feet so is perfect for planting in those areas that tend to stay dry, especially during winter. Get all the details below

Blue Cap Sea Holly (Eryngium planum 'Blaukappe') - 1 Gallon Pot

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SIZE: 1 GALLON POT

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