Ipomoea purpurea 'Kniola's Black Night'
A short-lived perennial twining climber to 5m tall, usually grown as an annual. Leaves are heart-shaped or three-lobed. Flowers borne from summer into early autumn are funnel-shaped, 3-6cm in diameter and deep purple with purple-flushed white throats
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Size
Ultimate height
2.5–4 metresTime to ultimate height
1 yearUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple Blue White | Green | ||
| Autumn | Purple Blue White | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H1CBotanical details
- Family
- Convolvulaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Climbing
- Potentially harmful
- Harmful if eaten. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Ipomoea can be annuals or perennials, often twining, or evergreen shrubs, with simple, lobed or dissected leaves and tubular or funnel-shaped flowers which may be solitary or borne in racemes or panicles
- Name status
Unresolved
How to grow
Cultivation
Grow as an annual climber in a moist but well-drained soil in full sun and sheltered from cold winds
Propagation
Propagate by seed. See sowing seeds indoors for further advice
Suggested planting locations and garden types
- Cottage and informal garden
- Patio and container plants
- Climber and wall shrubs
- Conservatory and greenhouse
Pruning
No pruning required
Pests
May be susceptible to glasshouse red spider mite
Diseases
Generally disease-free
Get involved
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