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© Janet Cubey & Wolfgang Bopp 2000
Conservatory/Greenhouse or Herbaceous Perennial
Tufted
old H2-3 (intermediate between H2 and H3)
Dark Pink in Spring, Summer and Winter
Green in Autumn, Spring, Summer and Winter
Dark Red in Autumn, Spring, Summer and Winter
1-1.5 metres
0.5-1 metres
1-2 years
giant herb robert
Geraniaceae
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
G. maderense is 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
Suppliers listed in RHS Plant Finder
Award of Garden Merit
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
Propagate by seed, division or take basal cuttings
Cottage/Informal Garden, Low Maintenance or Mediterranean Climate Plants
No pruning required
Generally pest free
May be affected by a downy mildew and powdery mildews
© The Royal Horticultural Society 2011 / RHS Registered Charity № 222879/SC038262