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Conservatory GreenhouseHerbaceous Perennial

Hedychium nagamiense

A clump-forming, rhizomatous perennial to around 1.5m tall with lance-shaped glossy leaves. In summer, 15-20cm long terminal spikes of peachy-pink flowers with prominent stamens are borne

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Ultimate height

1–1.5 metres

Time to ultimate height

5–10 years

Ultimate spread

0.5–1 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or 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: Zingiberaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: Hedychium are rhizomatous perennials with erect, unbranched stems bearing two ranks of lance-shaped leaves, and dense terminal racemes of showy, often fragrant, trumpet-shaped flowers
Name status: Correct
Plant range: Nagaland, India

How to grow

Cultivation

Outdoors, grow in humus-rich, moist but well-drained soil in sun or partial shade. Shelter from cold winds and apply a deep mulch of garden compost or leafmould to protect the rhizomes in frost-prone areas. In containers or under glass, use a peat-free. loam-based compost and grow on in bright, indirect light

Propagation

Divide rhizomes in spring

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Mediterranean climate plants
Flower borders and beds
Wall side borders

Pruning

No pruning required other than cutting back the foliage and old flower spikes at the end of the season

Pests

May be susceptible to glasshouse red spider mite and aphids under glass

Diseases

Generally disease-free

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