Delphinium grandiflorum 'Hunky Dory White' (Siberian Larkspur) — Clump-forming, upright

Overview

Delphinium grandiflorum 'Hunky Dory White' is a clump-forming, upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with divided green leaves foliage. Delphinium grandiflorum 'Hunky Dory White' 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 grandiflorum 'Hunky Dory White' is a clump-forming, upright herbaceous perennial in the Ranunculaceae grown for its white summer blooms. It bears divided green leaves and produces flowers from June to August. Best placed in full sun on neutral loam that stays moist but drains well. Like many larkspurs, it is poisonous and should be handled with care.

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 grandiflorum 'Hunky Dory White' is a compact, clump-forming member of the ranunculus family, valued for its white florets across the summer months; the species originates from temperate regions of Russia and China. Flowering occurs June to August, offering a reliable summer display when siting and soil suit its needs. Choose a sunny spot in neutral loam that retains moisture without waterlogging; full sun and a sheltered exposure give the best results. It tolerates east-, west- or south-facing aspects, and the H5 rating means it is classed as hardy for most UK gardens, though a sheltered position will help prevent stem damage in exposed winters. Keep soil consistently moist but well drained to support steady growth and flowering. Use this cultivar in mixed beds and herbaceous borders or as a source of cut flowers; its upright, clump-forming habit works well mid-border. The divided green leaves provide a fine-textured backdrop to the white blooms. Take care when cutting or weeding around the plants because, like many larkspurs, it is poisonous and stems or foliage should be kept away from children and pets.

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 grandiflorum 'Hunky Dory White' size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Clump-forming, upright
Foliage: Divided green leaves
Suggested uses: Beds, borders, cut flowers
Toxicity: Like many other larkspurs, this plant is poisonous.

Care notes

Pruning and caring for Delphinium grandiflorum 'Hunky Dory White'

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