Overview
Incarvillea delavayi is a perennial in the genus Incarvillea, part of the Bignoniaceae family. It typically grows around 0.4 m tall. Incarvillea delavayi grows best in full sun, and tolerates sandy and loamy soils. Its UK hardiness is rated H5. It is native to SW China.
About
Incarvillea delavayi is a perennial in the Bignoniaceae that flowers in summer from June to August. It grows to about 0.4 m and is native to SW China. Plant it in a full-sun position in sandy or loamy soil that is moist but well-drained. It is rated H5 (hardy) for UK conditions.
Wikipedia contributors, CC BY-SA 4.0 — Incarvillea delavayi
About the genus
Incarvillea is a genus of about 16 species of flowering plants in the family Bignoniaceae, native to central and eastern Asia, with most of the species growing at high altitudes in the Himalaya and Tibet. The most familiar species is Incarvillea delavayi, a garden plant commonly known as hardy gloxinia or Chinese trumpet flower. Unlike most other members of Bignoniaceae, which are mainly tropical woody plants, species of Incarvillea are herbaceous perennial plants from temperate regions.
Wikipedia contributors, "Incarvillea", CC BY-SA 4.0 — Incarvillea
In the garden
Incarvillea delavayi is a perennial member of the Bignoniaceae, native to SW China, with its main flowering season running from June to August. The species reaches approximately 0.4 m in height and provides a summer display suited to sunlit sites. Choose a sunny position and a free-draining medium: sandy or loamy soils that remain moist but do not sit waterlogged suit the plant best. Regular soil moisture through the growing season helps flowering, but waterlogged winter conditions should be avoided. It is rated H5 (hardy) in the UK, so it can remain outdoors through winter where drainage prevents standing water. At roughly 0.4 m tall, Incarvillea delavayi fits well into lower-tier plantings in a sunny border, where its seasonal flowers can be seen above the foliage. Flowering from June to August provides a clear summer period of interest, after which the plant persists as a perennial into the next growth cycle.
Growing conditions
Best soil and position for Incarvillea
- Sunlight
- Full sun
- Soil type
- Sandy, Loamy
- Soil moisture
- Moist but well-drained
- UK hardiness
- H5
Plant details
Incarvillea delavayi size, habit and characteristics
- Plant type
- Perennial
- Height
- 0.4 m
- Native to
- SW China
Care notes
Pruning and caring for Incarvillea delavayi
- Propagation
- Seed, Division
Frequently asked questions
Where is the best place to plant Incarvillea delavayi?
Incarvillea delavayi prefers full sun.
What soil does Incarvillea delavayi need?
Incarvillea delavayi grows best in sandy and loamy soil. Aim for soil that stays moist but well-drained.
How big does Incarvillea delavayi grow?
Incarvillea delavayi reaches a height of 0.4 m.
Is Incarvillea delavayi hardy in the UK?
Incarvillea delavayi has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Incarvillea delavayi?
Seed, Division.
More in the Incarvillea genus
- Incarvillea maireiMaire's hardy gloxinia
- Incarvillea mairei 'Bees' Pink'
- Incarvillea mairei 'Frank Ludlow'
- Incarvillea mairei 'Nyoto Sama'
- Incarvillea olgae
