Overview

Galtonia candicans is a bulbous perennial in the genus Galtonia, part of the Q157167 family. It typically grows around 1–1.2 metres tall. Galtonia candicans grows best in full sun and partial shade, and tolerates well-drained and fertile soils. Its UK hardiness is rated H4. Suggested uses include borders, containers and cut flowers. It is native to South Africa and Lesotho.

About

Galtonia candicans is a bulbous perennial that produces tall spikes of white, scented flowers in July to August. It grows from bulbs to 1–1.2 metres and originates from South Africa and Lesotho. Plants suit sunny or partly shaded positions and are often used in borders, containers and as cut flowers.

Wikipedia contributors, CC BY-SA 4.0Ornithogalum candicans

About the genus

Galtonia is a genus of plants in the family Asparagaceae, subfamily Scilloideae. Native to Southern Africa, the genus is named after Sir Francis Galton. According to some authorities it has been subsumed into Ornithogalum as a subgenus, while others prefer to keep it as a separate genus.

Wikipedia contributors, "Galtonia", CC BY-SA 4.0Galtonia

In the garden

Galtonia candicans grows from a bulb to form upright stems around 1–1.2 metres tall bearing multiple white flower spikes in July to August; the blooms are scented and are traditionally used for cutting. Its origins lie in the moist grasslands of South Africa and Lesotho, which explains its preference for soil that remains moist without becoming waterlogged. Place Galtonia candicans in full sun or partial shade on fertile, well-drained soil that retains some moisture. The species is rated H4 (average) for hardiness, so it will survive typical UK winters in most sheltered to open gardens provided drainage is good. In containers choose a free-draining potting mix and avoid prolonged waterlogging. Tall stems make it a useful structural plant at the back of a border or in a mixed container where height is needed in midsummer. Because the flowers are scented and borne on long stems it performs well as a summer cut flower; stems can be picked for arrangements during the main July to August display.

Growing conditions

Best soil and position for Galtonia

Sunlight
full sun, partial shade
Soil type
well-drained, fertile
Soil moisture
moist
UK hardiness
H4

Plant details

Galtonia candicans size, habit and characteristics

Plant type
bulbous perennial
Height
1–1.2 metres
Suggested uses
borders, containers, cut flowers
Native to
South Africa, Lesotho
Fragrance
Flower

Care notes

Pruning and caring for Galtonia candicans

Cultivation
Plant bulbs in spring in well-drained soil; protect from severe frost
Pruning
Remove spent flower stalks; cut back foliage after yellowing
Propagation
by seed, offsets

Frequently asked questions

How do I grow Galtonia candicans?

Plant bulbs in spring in well-drained soil; protect from severe frost.

Where is the best place to plant Galtonia candicans?

Galtonia candicans prefers full sun and partial shade.

What soil does Galtonia candicans need?

Galtonia candicans grows best in well-drained and fertile soil. Aim for soil that stays moist.

How do I prune Galtonia candicans?

Remove spent flower stalks; cut back foliage after yellowing.

How big does Galtonia candicans grow?

Galtonia candicans reaches a height of 1–1.2 metres.

Is Galtonia candicans hardy in the UK?

Galtonia candicans has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.

How do I propagate Galtonia candicans?

By seed, offsets.

More in the Galtonia genus

Browse all Galtonia