Koelreuteria elegans subsp. formosana

Trees

An evergreen tree to 10m tall, with a wide spreading crown and rough, furrowed bark. The large, 2-pinnate leaves are composed of opposite pairs of finely toothed, oval leaflets. Golden yellow flowers are borne in pyramidal clusters to 30cm long in late summer; these are followed by unusual, inflated, pink-flushed fruit capsules. Not hardy in the British Isles

Position

Full sun

Soil Types

Loam, Sand

Max Height

8-12 metres

Max Spread

4-8 metres

Size

Time to Maturity
20–50 years
Max Spread
4-8 metres
Max Height
8-12 metres

Growing Conditions

Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H3

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Sapindaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Spreading branched
Genus
Koelreuteria are slender deciduous trees with attractive, pinnately-divided leaves and panicles of yellow flowers followed by bladdery fruits
Name Status
Correct
Plant Range
Taiwan

How to Grow

Cultivation

Under glass, grow in peat-free, loam-based compost with added grit, in full light. Water freely in the growing season and apply a balanced liquid fertiliser monthly; water sparingly at other times

Propagation

Propagate by root cuttings

Suggested planting locations and garden types

  • Conservatory and greenhouse

Pruning

See pruning group 1

Pests

May be susceptible to glasshouse red spider mite

Diseases

May be susceptible to honey fungus