Overview

Delphinium 'Centurion White' (Centurion Series) is a columnar upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with deciduous foliage. It typically grows around 1.5-2.5 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Delphinium 'Centurion White' (Centurion Series) grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include borders and cut flowers.

About

Delphinium 'Centurion White' (Centurion Series) is a herbaceous perennial with a columnar upright habit that reaches 1.5–2.5 metres. It is deciduous and typically takes 2–5 years to reach full height. Plants prefer full sun on south-, east- or west-facing, sheltered positions and grow in a wide range of soils that are moist but well-drained. Flowering occurs June to August and the cultivar is suited to borders and for cutting.

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

A cultivar in the Centurion Series within the Ranunculaceae, Delphinium 'Centurion White' produces a tall, columnar profile and a 0.5–1 metre spread. It is herbaceous and deciduous, reaching its mature height over 2–5 years rather than in a single season. The plant carries the size and upright habit typical of perennial delphiniums and is listed as H5, which places it among hardy perennials for much of the UK. Position the plant in full sun on a sheltered site; aspects from south through west and east are suitable. It will tolerate a wide range of soils — chalk, clay, loam or sand — provided they are moist but well drained, and it grows across acid, neutral and alkaline pH. These site factors are the primary determinants of success, together with allowing the plant space for its 0.5–1 metre spread. Use Delphinium 'Centurion White' where tall, vertical accents are needed: mixed herbaceous borders and places where cut stems are wanted for arrangements. Allow the 2–5 year establishment period before expecting a reliable supply of flowering stems for cutting.

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 'Centurion White' (Centurion Series) size, habit and characteristics

Plant type

Herbaceous Perennial

Habit

Columnar upright

Foliage

Deciduous

Height

1.5-2.5 metres

Spread

0.5-1 metres

Time to full height

2-5 years

Suggested uses

Borders, cut flowers

Care notes

Pruning and caring for Delphinium 'Centurion White' (Centurion Series)

Propagation

Seeds, division

Pest resistance

Susceptible to slugs

Disease resistance

Susceptible to powdery mildew

Frequently asked questions

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