Geranium maderense
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 metresTime to ultimate height
1–2 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| 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 West–facing
Exposure
Exposed or Sheltered Hardiness
H3Botanical 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 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
- Low Maintenance
Pruning
No pruning required
Pests
Generally pest-free
Diseases
May be affected by a downy mildew and powdery mildews
Get involved
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