Delphinium Black Knight

Common Name:
Delphinium

Description:
Delphinium ‘Black Knight’ is a dramatic and elegant perennial renowned for its tall flower spikes densely packed with deep violet-blue blooms featuring dark central eyes. Flowering from late spring through summer, this classic cottage garden favourite creates a bold vertical accent in garden beds and borders. The richly coloured flowers rise above lush green foliage and are highly attractive to bees and beneficial pollinators. Well suited to Melbourne’s cooler growing conditions, ‘Black Knight’ performs best in full sun with rich, well-drained soil and regular moisture during active growth. Staking may be beneficial in exposed areas to support the towering flower spikes. Its long stems and impressive floral display also make it highly valued as a cut flower for indoor arrangements. With its striking colour and architectural presence, this variety brings timeless beauty and sophistication to perennial gardens.

Form:

• Shrub - Clumping / Grass-like / Mounding

Mature Size:

• Height: 1.2–1.8 m
• Width: 45–60 cm

Aspect:

• Full Sun
• Part Shade

Flowering:

• Flowers in Spring
• Flowers in Summer

Flower Colour:

• Deep violet-blue
• Indigo purple
• Dark central eye

Key Attributes:

• Bee Attracting
• Bird Attracting
• Herbaceous
• Perennial
• Suitable for Cottage Gardens
• Suitable for Cut Flowers
• Suitable for Formal Gardens

Toxicity:
Toxic to humans and pets if ingested. All parts of the plant contain alkaloids that may cause nausea, vomiting, nervous system effects, and skin irritation.

Companion Plants:

• Roses
• Salvia
• Foxglove
• Lupin
• Peony
• Nepeta
• Shasta Daisy