Delphinium ‘King Arthur’

Description

Noble and commanding, Delphinium ‘King Arthur’ brings majestic vertical drama to garden beds and borders. Its deep violet-purple flower spikes with striking white “bees” (central markings) create a royal presence in any sunny landscape. Blooming in early to mid-summer, this classic cottage garden favorite offers tall, elegant spires perfect for backdrop planting or cutting for fresh arrangements.

A member of the Pacific Giant series, ‘King Arthur’ combines height with refined beauty, standing tall above lush, divided green foliage. Best grown in rich, well-drained soil with consistent moisture, this delphinium performs beautifully in cool climates and thrives when sheltered from strong winds.

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🔍 Plant Details
Botanical Name: Delphinium ‘King Arthur’

Height: 36–48 inches

Spread: 12–18 inches

Sun Requirements: Full sun to part shade (prefers morning sun and afternoon shade in hot climates)

Water Needs: Moderate to high; prefers consistent moisture

Soil Requirements: Rich, well-draining soil with compost or organic matter

Bloom Time: Early to mid-summer

Flower Size: Tall spikes with densely packed flowers

Hardiness Zones: USDA Zones 3–7

Attracts: Butterflies, hummingbirds, and pollinators

Maintenance: Stake tall stems; deadhead after flowering to encourage a possible second flush; cut back in fall

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💚 Why You’ll Love It

Majestic Blooms: Rich purple spires with white centers make an unforgettable statement.

Cottage Garden Staple: A classic perennial that adds height, texture, and elegance to layered plantings.

Pollinator Friendly: Loved by bees, butterflies, and hummingbirds.

Excellent Cut Flower: Long-lasting in bouquets with dramatic flair.

Cold Hardy Performer: Thrives in cooler climates and returns reliably each year with proper care.