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Herbaceous PerennialConservatory Greenhouse

Geranium maderense
  • 911±¬ÁÏ AGM
  • 911±¬ÁÏ Plants for pollinators

giant herb robert

A robust but short-lived evergreen perennial or biennial to 1.5m, with attractively dissected leaves to 20cm in length and large panicles of purplish-pink flowers 4cm across, with darker centres

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
1–2 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
°Â±ð±ô±ô–d°ù²¹¾±²Ô±ð»å
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Red Pink Green
Summer Red Pink Green
Autumn Red Green
Winter Red Pink Green
Position
  • Full shade
  • Full sun
  • Partial shade
Aspect

East–facing or South–facing or North–facing or °Â±ð²õ³Ù–f²¹³¦¾±²Ô²µ

Exposure
Exposed or Sheltered
Hardiness
H3
Botanical details
Family
Geraniaceae
Native to the UK
No
Foliage
Evergreen
Habit
Tufted
Genus

Geranium can be annuals, biennials and perennials, herbaceous or evergreen, with rounded, usually palmately lobed or divided leaves, and lax inflorescences of rounded, 5-petalled flowers

Name status

Correct

Plant range
Madeira

How to grow

Cultivation

Grow outdoors in well-drained soil in either sun or shade in frost-free area. Grow under glass in peat-free, loam-based compost with added sharp sand in bright filtered light. Remove flowered stems and old leaves to encourage the production of new leaves and flowers

Propagation

Propagate by seed, division or take basal cuttings

Suggested planting locations and garden types
  • Cottage and informal garden
  • Mediterranean climate plants
  • City and courtyard gardens
  • Coastal
  • Wildlife gardens
  • Flower borders and beds
  • Conservatory and greenhouse
Pruning

No pruning required

Pests

Generally pest-free

Diseases

May be affected by a downy mildew and powdery mildews

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