Delphinium Pacific Giants King Arthur Plants (Set of 3 or 6)

Bring classic cottage garden elegance to your borders with the Delphinium Pacific Giants King Arthur. Renowned for its towering spires of rich, deep royal violet-purple flowers, each bloom features a striking white \"bee\" (centre), creating a dramatic contrast that catches the eye from across the garden. Part of the celebrated Pacific Giants Series, King Arthur is one of the most popular and reliable delphinium varieties, delivering bold vertical structure and long-lasting summer colour.

These hardy herbaceous perennials are perfect for planting towards the back of sunny borders or alongside pathways where their impressive flower spikes can be fully appreciated. They also make outstanding cut flowers, adding height and sophistication to floral arrangements.

This listing includes 3 or 6 established plants supplied in 1Ltr root-balls, ready to plant straight into your garden or containers.

Cultural Information:

• Botanical Name: Delphinium elatum 'King Arthur' (Pacific Giants Series)


• Common Names: Delphinium, Larkspur


• Classification: Hardy Herbaceous Perennial


• Fully Grown Height and Spread: 120–180 cm x 60–90 cm


• Growth Habit: Upright, Clump-Forming Perennial


• Perfect For: Cottage Gardens, Herbaceous Borders, Cut Flower Gardens, Back of Borders


• Flowering Time: June to July (may repeat flower in early Autumn if cut back after first flush)


• Flower Colour: Deep Royal Violet-Purple with a White Bee (Centre)


• Planting Position: Full Sun to Light Partial Shade


• Soil Requirements: Fertile, Moist but Well-Drained Soil


• Attracts: Bees, Butterflies and Other Pollinators


• Hardiness: Fully Hardy (RHS H7)


• Foliage: Mid-Green, Deeply Lobed Palmate Leaves


• Pruning: Cut back spent flower spikes to encourage a second flush of blooms in early Autumn

Planting Tips:

• Plant in a sheltered position to protect tall flower spikes from strong winds.


• Staking is recommended as the plants grow to help support the heavy flower spires.


• Enrich the planting area with organic matter to retain moisture and provide nutrients.


• Water regularly during dry spells, particularly in the first growing season.


• Apply a balanced feed in spring to encourage vigorous growth and abundant flowering.

What You Receive:

3 or 6 x Delphinium Pacific Giants King Arthur plants, each supplied in a 1Ltr root-ball, ready for planting.

Notes: The King Arthur variety is distinguished by its deep violet-purple colouring with a contrasting white centre. As with all perennials, plants may arrive dormant or in early growth depending on the season and will establish and flower in their first or second year.

Free UK Delivery on Every Order

All orders placed Monday–Thursday before 2pm are packed the next working day and delivered within 24 hours of dispatch.

Example: Order on Monday → packed Tuesday → delivered Wednesday.

Orders placed Friday–Sunday are packed and shipped on Monday. We don't dispatch on weekends to ensure your plants travel fresh.

How Your Plants Arrive
Every plant is individually wrapped in our plastic-free packaging and secured in a custom box designed to keep them upright and protected in transit. If anything arrives damaged, get in touch — we'll replace it.

Returns
Not happy? Contact us within 14 days of delivery and we'll sort it out. See our full returns policy here.