Streptocarpus 'Helen'
Cape primrose 'Helen'
Streptocarpus Streptocarpus
'Helen' _ 'Helen' is a tender perennial for indoor use. It has dark-green, heavily-veined, oblong leaves formed at the base. It bears sprays of lavender-blue, tubular flowers on wiry stems.
Streptocarpus 'Helen' is: Deciduous
Compact
RHS AGM (Award of Garden Merit)
Lavender, Blue in Spring; Lavender, Blue in Summer; Lavender, Blue in Autumn
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
Leafhoppers , Mealybugs , Tarsonemid mites , Thrips , Vine weevil Leafhoppers , Mealybugs , Tarsonemid mites , Thrips , Vine weevil
Generally disease-free
Leaf cuttings, Seed
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Streptocarpus 'Helen' (Cape primrose 'Helen') will reach a height of 0.2m and a spread of 0.2m after 2-5 years.
Conservatory, Containers, Greenhouse, Indoor
Grow indoors in loam-free compost in bright, filtered light. Allow compost to dry out between waterings. Deadhead to prolong flowering.
Chalky, Clay, Sandy
Well-drained, Moist but well-drained
Acid, Alkaline, Neutral
Partial Shade
South, East, West
Sheltered
Indoor heated (H1)
We do not currently have companion plants added for this plant.
Streptocarpus 'Helen'
Cape primrose 'Helen'
Streptocarpus Streptocarpus
'Helen' _ 'Helen' is a tender perennial for indoor use. It has dark-green, heavily-veined, oblong leaves formed at the base. It bears sprays of lavender-blue, tubular flowers on wiry stems.
Deciduous
Compact
RHS AGM (Award of Garden Merit)
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Lavender, Blue in Spring; Lavender, Blue in Summer; Lavender, Blue in Autumn
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
Leafhoppers , Mealybugs , Tarsonemid mites , Thrips , Vine weevil
Generally disease-free
Leaf cuttings, Seed
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Streptocarpus 'Helen' (Cape primrose 'Helen') will reach a height of 0.2m and a spread of 0.2m after 2-5 years.
Conservatory, Containers, Greenhouse, Indoor
Grow indoors in loam-free compost in bright, filtered light. Allow compost to dry out between waterings. Deadhead to prolong flowering.
Chalky, Clay, Sandy
Well-drained, Moist but well-drained
Acid, Alkaline, Neutral
Partial Shade
South, East, West
Sheltered
Indoor heated (H1)
Zone 9, Zone 8, Zone 7, Zone 6
Streptocarpus 'Helen' (Cape primrose 'Helen')
Alfalfa dwarf; Anaheim disease; California vine disease; Dwarf disease of alfalfa; Dwarf disease of lucerne; Leaf scald of oleander; Leaf scald of plum; Leaf scorch; Phony disease of peach; Pierce's disease of grapevine; Variegated chlorosis of citrus
Xylella fastidiosa subsp. fastidiosa
Bacterium
Absent
2
3
A bacterial disease whose main hosts include grapevine; citrus; coffee and almond. Detected in Germany in 2016 in Nerium oleander. Some uncertainty about the potential to establish under UK climatic conditions; which will be investigated further. As an EU regulated pest; should an outbreak occur; there would be a need for eradication action; which would result in environmental and social impacts.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
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This plant likes... | Garden match | |
Soil types: | Chalky, Clay, Sandy | Tell us... |
Soil drainage: | Well-drained, Moist but well-drained | Tell us... |
Soil pH: | Acid, Alkaline, Neutral | Tell us... |
Light: | Partial Shade | Tell us... |
Aspect: | South, East, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Indoor heated (H1) | Tell us... |
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