Incarvillea delavayi 'Snowtop'
Delavay hardy gloxinia 'Snowtop'
A herbaceous perennial to around 60cm high, with a basal rosette of pinnate leaves divided into pairs of coarsely toothed leaflets. Clusters of showy, tubular to funnel-shaped white flowers with yellow throats are produced on upright stems in early and mid summer
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | White | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Bignoniaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Genus
Incarvillea are annuals or perennials grown for their tubular, trumpet-shaped flowers. Some species are suited to rock gardens whilst others can be grown in a mixed, herbaceous border.
- Name status
Accepted
How to grow
Cultivation
Grow in fertile, moist but well-drained soil, in a sunny spot but ideally with some shade in summer. Protect from excess winter wet, and mulch well in areas prone to hard frosts
Propagation
Propagate by seed, or by basal softwood cuttings in spring. Plants grown from seed may take up to three years to flower
Suggested planting locations and garden types
- Cottage and informal garden
- Gravel garden
- Rock garden
- Banks and slopes
- Flower borders and beds
Pruning
Cut back spent flower stems
Pests
May be susceptible to slugs
Diseases
Generally disease-free
Get involved
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