About This Plant
A compact sea holly perennial with striking, silvery blue foliage and rounded blue flower heads surrounded by spiky bracts. Its sculptural form adds texture and contrast to sunny borders, rock gardens, and gravel plantings. Drought tolerant once established, it is also attractive to pollinators and excellent for dried arrangements.
Planting & Care
How to Plant
Choose a spot with 6+ hours of direct sun. Dig a hole twice as wide as the pot and plant at the same depth it was growing, gently loosening the roots. Prefers acidic, well-drained soil rich in organic matter. Water deeply after planting and add 2–3 in of mulch, keeping it off the stems. Hardy in USDA zones 4-8.
Watering & Feeding
Water deeply 1–2 times a week for the first season, about 1 in per week. Keep soil evenly moist, especially during heat and dry spells. Feed in spring with a fertilizer for acid-loving plants.
Pruning & Seasonal Care
Deadhead spent flowers to encourage more blooms. Cut back after a hard frost, or leave stems standing for winter interest and tidy up in spring. Divide every 3–4 years if the center thins. Mulch in late fall to protect roots through the first winter.