Delphinium 'Delphi's Moonlight' (Larkspur) — Clump-forming, upright

Overview

Delphinium 'Delphi's Moonlight' is a clump-forming, upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with divided green leaves foliage. Delphinium 'Delphi's Moonlight' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include beds, borders and cut flowers.

About

Delphinium 'Delphi's Moonlight' is a herbaceous perennial in the Ranunculaceae with an upright, clump-forming habit and divided green leaves. Valued for beds, borders and as a cut flower, it produces its display from June to August. It prefers full sun on loam of neutral pH that remains moist but well drained and benefits from a sheltered situation. Suitable for UK gardens, it is classed as hardy (H5).

About the genus

Delphinium is a genus of about 300 species of annual and perennial flowering plants in the family Ranunculaceae, native throughout the Northern Hemisphere and also on the high mountains of tropical Africa. The genus was erected by Carl Linnaeus.

Wikipedia contributors, "Delphinium", CC BY-SA 4.0 — Delphinium

In the garden

Delphinium 'Delphi's Moonlight' sits within the Ranunculaceae and has a clear upright, clump-forming habit with divided green foliage. Flowering runs from June to August, making it a summer-flowering option for displays and for cutting. The plant is recommended where a reliable mid-summer supply of stems is wanted. Position plants in full sun on a loam-based soil with a neutral pH; keep soil consistently moist but ensure good drainage to avoid waterlogging. Choose a sheltered spot facing south, west or east to protect the crowns from prevailing winds. In UK terms it is classed as hardy (H5), so it tolerates typical winter conditions for that rating when established. Use Delphinium 'Delphi's Moonlight' in mixed beds and herbaceous borders or grow it specifically for summer cutting. Grouping in numbers gives a steadier supply of stems for arrangements and helps the plants read as a block in a border. To make the most of its June to August season, remove spent stems promptly to encourage tidy growth and continued flowering for the summer period.

Growing conditions

Best soil and position for Delphinium

Sunlight: Full sun
Soil type: Loam
Soil pH: Neutral
Soil moisture: Moist but well-drained
Aspect: South-facing, West-facing, East-facing
Exposure: Sheltered
UK hardiness: H5

Plant details

Delphinium 'Delphi's Moonlight' size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Clump-forming, upright
Foliage: Divided green leaves
Suggested uses: Beds, borders, cut flowers

Care notes

Pruning and caring for Delphinium 'Delphi's Moonlight'

Propagation: Basal cuttings in early spring
Pest resistance: Aphids, earwigs, delphinium leaf miner, delphinium moth caterpillars, slugs, snails, caterpillars
Disease resistance: Powdery mildews, delphinium black blotch, crown rot, viruses