Overview
Streptocarpus Three Sisters (mixed) is a clump forming conservatory greenhouse in the genus Streptocarpus, part of the Gesneriaceae family, with deciduous foliage. Streptocarpus Three Sisters (mixed) grows best in full sun and partial shade, and tolerates loam and sand soils and any pH. Its UK hardiness is rated H1c. Suggested uses include houseplants and conservatory and greenhouse.
About
Streptocarpus 'Three Sisters' (mixed) is a clump-forming cultivar of the Streptocarpus genus, which includes annuals, perennials, and subshrubs known for their wrinkled, lanceolate or rounded leaves and clusters of tubular to trumpet-like flowers with five spreading lobes. This deciduous plant thrives in bright, indirect light within a sheltered environment, making it suitable for houseplants, conservatories, or greenhouses. It prefers moist but well-drained loam or sandy soil of any pH and is hardy to H1c in the UK. The cultivar flowers from spring through autumn and is propagated by leaf cuttings, seed, or division.
Growing conditions
Best soil and position for Streptocarpus
- Sunlight
- Full sun, Partial shade
- Soil type
- Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H1c
Plant details
Streptocarpus Three Sisters (mixed) size, habit and characteristics
- Plant type
- Conservatory Greenhouse, Houseplants
- Habit
- Clump forming
- Foliage
- Deciduous
- Suggested uses
- Houseplants, Conservatory and greenhouse
Care notes
Pruning and caring for Streptocarpus Three Sisters (mixed)
- Propagation
- Leaf cuttings, Seed, Division
- Pest resistance
- Aphids, Glasshouse leafhopper, Mealybug, Tarsonemid mites
- Disease resistance
- Botrytis, Powdery mildew
Frequently asked questions
Where is the best place to plant Streptocarpus Three Sisters (mixed)?
Streptocarpus Three Sisters (mixed) prefers full sun and partial shade. It suits sheltered positions.
What soil does Streptocarpus Three Sisters (mixed) need?
Streptocarpus Three Sisters (mixed) grows best in loam and sand soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Streptocarpus Three Sisters (mixed) hardy in the UK?
Streptocarpus Three Sisters (mixed) has an RHS hardiness rating of H1c, meaning it needs a warm, frost-free position of 5–10°C and is best grown under glass in the UK.
How do I propagate Streptocarpus Three Sisters (mixed)?
Leaf cuttings, Seed, Division.
More in the Streptocarpus genus
- Streptocarpus 'Black Panther'

- Streptocarpus 'Aca's Red Ember' (AV/v)
- Streptocarpus 'Aly's Rosy Baby' (AV)African violet 'Alys Rosy Baby'
- Streptocarpus 'Amanda Rose'
- Streptocarpus 'Athena'
- Streptocarpus 'Beryl'
- Streptocarpus 'Blackie Bryant' (AV)
- Streptocarpus 'Blue Angel'