Not the plant you're looking for? Search over 300,000 plants

Herbaceous Perennial

Hesperantha coccinea 'Jack Frost'

crimson flag lily 'Jack Frost'

A semi-evergreen cormous perennial, forming a clump of narrow, lance-shaped leaves. This late-flowering cultivar produces upright spikes of starry white flowers, tinted with palest pink, from autumn through to mid-winter

Synonyms

Schizostylis coccinea 'Jack Frost'

Save to My plants

Buy this plant

Plant nurseries
2 suppliers

Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Iridaceae
Native to GB / Ireland: No
Foliage: Semi evergreen
Habit: Clump forming
Genus: Hesperantha are semi-evergreen, rhizomatous perennials with narrowly sword-shaped, erect leaves and spikes of starry or bowl-shaped flowers from late summer to late autumn
Name status: Unresolved

How to grow

Cultivation

Grow in moderately fertile, moist but well-drained soil in full sun. Shelter from cold drying winds, and protect with a dry mulch in winter. May be evergreen in frost-free areas, cold winds and frosts may blacken leaves over winter

Propagation

Propagate by division in spring

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Prairie planting
Cut flowers
Flower borders and beds
Wall side borders

Pruning

Deadhead to promote flowering. Cut down stems after flowering

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.