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Herbaceous PerennialConservatory Greenhouse

Manihot grahamii

Fast-growing, sub-tropical, woody-stemmed perennial native to South America, about 2-3m tall, with deeply-lobed, intricately-cut, palmate rich green leaves and clusters of waxy red-striped, pale green bell-shaped flowers in summer. It is closely related to the edible tapioca

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
1–2 years
Ultimate spread
1–1.5 metres
Growing conditions
Loam
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green Red Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Euphorbiaceae
Native to the UK
No
Foliage
Deciduous or Semi evergreen
Habit
Spreading branched
Name status

Correct

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How to grow

Cultivation

In mild or frost-free counies, grow in any free-draining soil in full sun with shelter. In frost-prone areas, grow in a cool greenhouse, in a mix of peat-free potting compost and grit, in full light and with low humidity. Water moderately during the growing season, sparingly in winter

Propagation

Propagate by seed or softwood cuttings (stem cuttings)

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Mediterranean climate plants
  • Patio and container plants
  • Sub-tropical
  • Conservatory and greenhouse
Pruning

No pruning required. Cut down any dead or damaged foliage in early spring

Pests

May be susceptible to aphids, glasshouse red spider mite or glasshouse whitefly if grown under glass

Diseases

Generally disease-free

Get involved

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