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Conservatory Greenhouse

Kohleria warszewiczii

Warscewicz tree gloxinia

An erect to spreading rhizomatous perennial to 60cm tall, with dark green, velvety leaves to 20cm long. From summer to autumn it produces tubular pink flowers to 3cm long, white on the inside of the tubes and with green lobes spotted purple

Synonyms

Kohleria digitaliflora

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Partial shade

Aspect

East–facing or North–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)

H1B

Botanical details

Family: Gesneriaceae
Native to the UK: No
Foliage: Deciduous
Habit: Bushy
Genus: Kohleria are erect rhizomatous perennials with simple, toothed leaves sometimes with silvery markings, and solitary or clustered tubular or bell-shaped flowers with 5 spreading rounded lobes
Name status: Correct
Plant range: Colombia

How to grow

Cultivation

Start the rhizomes into growth at 21°C in early spring. Grow in houseplant compost in bright, filtered light with high humidity. Using soft water, water moderately at first, then freely when in full growth. When flower buds appear, apply a high-potash fertiliser every 2 weeks. In autumn, remove dying top growth and keep almost completely dry

Propagation

Propagate by division in early spring

Suggested planting locations and garden types

Houseplants
Conservatory and greenhouse

Pruning

No pruning required

Pests

May be susceptible to aphids

Diseases

May be susceptible to rhizome rots if overwatered

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