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Pachypodium lamerei AGM

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© RHS

Characteristics

Plant type

Cactus/Succulent or Conservatory/Greenhouse

Habit

Bushy

Resilience

Hardiness

H1a (heated greenhouse - tropical)

Colour

Flower

White and Yellow in Summer

Foliage

Green in Autumn, Spring and Summer

Size

Ultimate height

2.5-4 metres

Ultimate spread

1.5-2.5 metres, 1-1.5 metres

Time to ultimate height

10-20 years


Preferred common name

Madagascar palm

Family

Apocynaceae


Pachypodium are shrubby succulents, mostly with thick, prickly stems, simple leaves and funnel-shaped flowers in terminal clusters

P. lamerei is a succulent shrub or small tree with thick, thorny stems bearing a cluster of narrow leaves near the apex, and terminal clusters of yellow-throated white flowers 10cm across in summer

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered

Cultivation

Under glass, grow in standard cactus compost in full light. From late spring to early autumn, water moderately and apply a low nitrogen liquid fertiliser every 4-5 weeks. Keep dry at other times

Soil

  • Well-drained
  • Alkaline
  • Sand, Chalk or Loam

Propagation

Propagate by seed at 19-24°C ( 66-75°F), or take stem-tip cuttings, in late spring

Suggested planting locations and garden types

Patio/Container Plants


How to care

Pruning

No pruning necessary

Pests

Vulnerable to aphids while flowering

Diseases

Relatively disease resistant