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AGM plants have been through a rigorous trial and assessment programme. They are:
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Other common names
sinningia 'Empress Purple Spotted'
Sinningia can be deciduous, tuberous perennials or small, deciduous or evergreen shrubs, with simple, fleshy leaves and large, bell-shaped, to tubular flowers in summer
Gesneriaceae / Gesneriaceae
'Empress Purple Spotted' is a perennial grown as a biennial, with hairy ovate leaves and bell-shaped white flowers 8cm across, densely speckled with violet in the throat
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.
For full details of the hardiness ratings see
Aspect East-facing or West-facing or South-facing
Exposure Sheltered or Exposed
MoistureMoist but well-drained
Grow in moist but well-drained, humus-rich, neutral to acid soil in partial shade
Propagate by seed or tubers
Suggested planting locations and garden types
Patio & Container Plants
Cut back after flowering
May be attacked by leafhoppers and thrips
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
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