Overview

Delphinium 'Molly Buchanan' is a columnar upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with deciduous foliage. Delphinium 'Molly Buchanan' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden and wildlife gardens.

About

Delphinium 'Molly Buchanan' is a herbaceous perennial cultivar within the Delphinium genus, known for its columnar upright habit and deciduous foliage. Like other Delphiniums, it produces prominent, bowl-shaped flowers arranged in spikes, making it a striking addition to cottage and informal gardens as well as wildlife gardens. This cultivar thrives in full sun with shelter from wind, preferring fertile, well-drained soils of various types and pH levels. It is hardy in UK conditions (H5) and is best grown in moist but well-drained soil, with staking recommended for taller varieties. Interest is primarily in spring and summer.

Growing conditions

Best soil and position for Delphinium

Sunlight
Full sun
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained, Well-drained
Aspect
South-facing, East-facing, West-facing
Exposure
Sheltered
UK hardiness
H5

Plant details

Delphinium 'Molly Buchanan' size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Columnar upright
Foliage
Deciduous
Suggested uses
Cottage and informal garden, Wildlife gardens

Care notes

Pruning and caring for Delphinium 'Molly Buchanan'

Propagation
Propagate by taking pencil thick basal cuttings in early spring or propagate by seed in spring or autumn (cultivars will not come true)
Pest resistance
May be susceptible to aphids, earwigs, delphinium leaf miner, delphinium moth caterpillars, slugs, snails and caterpillars
Disease resistance
May be susceptible to powdery mildews, delphinium black blotch, crown rot and viruses

Frequently asked questions

Where is the best place to plant Delphinium 'Molly Buchanan'?

Delphinium 'Molly Buchanan' prefers full sun. It suits sheltered positions.

What soil does Delphinium 'Molly Buchanan' need?

Delphinium 'Molly Buchanan' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.

Is Delphinium 'Molly Buchanan' hardy in the UK?

Delphinium 'Molly Buchanan' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Delphinium 'Molly Buchanan'?

Propagate by taking pencil thick basal cuttings in early spring or propagate by seed in spring or autumn (cultivars will not come true).

More in the Delphinium genus

Browse all Delphinium