Delphinium (Larkspur) – Mixed Colour Tall Hardy Perennial (12 x 9cm Pots)

Delphiniums bring bold cottage-garden height to a sunny border, with towering spires of richly coloured flowers rising above deeply divided green foliage. This collection gives you 12 plants, each in its own 9cm pot, in a mix of complementary colours for a multi-toned display from early summer into early autumn.

Delphinium elatum hybrids are among the most iconic British border perennials. The flower spires are excellent for cutting and are loved by bees and other pollinating insects. They die back in winter and return reliably each spring.

The plants arrive well rooted and ready to plant into a border or a large container. Choose a sunny, sheltered spot with moist, fertile, free-draining soil, as tall spires can snap in strong wind. The exact shades vary, because the collection is curated to give a harmonious blend of tones.

Stake young plants early to support the tall flower spikes. Deadhead spent blooms to encourage a second flush in late summer, then cut back to ground level in autumn. Mulch the crowns over winter in exposed gardens, and protect young shoots from slugs and snails in spring.

Cultural Information

• Common Name: Delphinium, Larkspur
• Botanical Name: Delphinium elatum
• Fully Grown Height and Spread: Approx. 90-200cm tall and 30-60cm wide (variety dependent)
• Growth Habit: Upright, clump-forming with tall, erect flowering spires
• Perfect For: Cottage Gardens, Mixed Borders, Cut Flower Gardens, Wildlife Gardens
• Foliage: Mid-green, deeply palmate and divided leaves
• Flowering Time: Early to mid summer (June to July), with a possible second flush in late summer if cut back after first flowering
• Flower Colour: Mixed, in complementary shades
• Planting Position: Full sun, sheltered from strong winds
• Soil Type: Moist, fertile, free-draining soil
• Hardiness: Fully hardy in Britain, though it needs free-draining soil and shelter from wind to come through winter well
• Seasonal Interest: Summer into early autumn
• Type: Hardy herbaceous perennial (dies back in winter, re-emerges in spring)