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Herbaceous Perennial

Iochroma gesnerioides 'Coccineum'

A deciduous to semi-evergreen perennial, related to Brugmansia, with green foliage, best suited to a conservatory or greenhouse but can be grown outside against a sheltered wall. Long, trumpet-shaped orange flowers appear from August to November

Synonyms

Cestrum coccineum
Iochroma coccineum

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Ultimate height

2.5–4 metres

Time to ultimate height

1–2 years

Ultimate spread

1.5–2.5 metres

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

Drought resistance

Yes

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: Solanaceae
Native to GB / Ireland: No
Foliage: Deciduous or Semi evergreen
Habit: Bushy
Genus: Iochroma are evergreen or deciduous shrubs or small trees, with simple, pointed, oval leaves. The nodding or hanging tubular or trumpet-shaped flowers may be purple, blue, red, white or yellow and are followed by pulpy berries enclosed in a large calyx
Name status: Accepted

How to grow

Cultivation

Grow in moist, but well-drained soil in bright, filtered light, in a conservatory or greenhouse, although will tolerate some shade. Allow soil to dry out between waterings. If grown outside, plant in a sheltered part of the garden against a warm, sunny wall. Suitable for pots and containers which can be brought into a conservatory or greenhouse over winter

Propagation

Propagate by root cuttings or propagate by seed sown in fine, well-draining potting compost. Place pots in a warm room in filtered sunlight - germination will normally take aroudn 6 weeks

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Conservatory and greenhouse
Wall side borders

Pruning

Prune lightly after flowering to keep neat, but can be cut back hard, even to ground level, to encourage a compact shape and bushy habit

Pests

May be susceptible to glasshouse red spider mite, glasshouse whitefly and mealybugs

Diseases

May be susceptible to Fusarium wilt and verticillium wilt

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