Big Blue Sea Holly 1Gallon

Plant Overview

Big Blue Sea Holly is a striking ornamental plant that commands attention in any garden setting. Its metallic blue flowers and spiny, silvery-blue bracts create an otherworldly appearance that adds drama and architectural interest to borders and cutting gardens. This award-winning perennial maintains its intense color even when dried, making it an excellent choice for both fresh and dried flower arrangements.

Plant Information

• Latin Name: Eryngium planum
• Common Name: Big Blue Sea Holly
• Watering Requirements: Low to Medium
• Sun Exposure: Full Sun
• Soil Conditions: Well-draining, Sandy to Average
• Mature Plant Height: 24-30 inches
• Mature Plant Width: 18-24 inches

Plant Care

Sea Holly is remarkably low-maintenance and drought-tolerant once established. These hardy plants thrive in poor to average soil conditions and actually prefer not to be pampered. Remove spent flower heads to prevent self-seeding and maintain plant vigor. The plants deep taproot makes it difficult to divide or transplant, so choose its location carefully.

Planting Instructions

Plant in spring or fall, spacing plants 18-24 inches apart. Dig a hole twice the width of the root ball but at the same depth. Place the plant at the same level it was growing in the container, backfill with soil, and water thoroughly. Add a layer of mulch around the plant, keeping it away from the crown to prevent rot. Avoid overwatering during the establishment period.

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