Begonia grandis subsp. evansiana 'Alba'
white hardy begonia
A tuberous perennial about 50cm in height, with asymmetric, notched olive-green leaves to 10cm long, pale green or sometimes reddish beneath, and nodding clusters of slightly fragrant white flowers 2-3cm across, on long reddish stems in summer
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
5–10 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Red | |||
|---|---|---|---|---|
| Summer | White | Green Red | ||
| Autumn | Green Red | |||
| Winter |
Position
- Partial shade
Aspect
South–facing or East–facing or West–facing
Exposure
Sheltered Hardiness
H2Botanical details
- Family
- Begoniaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Tufted
- Potentially harmful
- Ornamental bulbs - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Ornamental bulbs - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
- Genus
Begonia can be annuals, evergreen or deciduous perennials or shrubs, with fibrous, tuberous or rhizomatous roots and usually asymmetrical leaves, often strikingly patterned, and small or large flowers, both male and female in the same cluster
- Name status
Correct
How to grow
Cultivation
Thrives in fertile, humus-rich, well-drained neutral to acid soil, in dappled or afternoon shade. May need winter protection in colder regions, and can be slow to start in spring. Will not tolerate waterlogging. See begonias: outdoors for further information
Propagation
Propagate by basal softwood cuttings in spring, or by seed; plants will often self-seed, dropping tiny bulblets from the stems in late summer
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Mediterranean climate plants
- Patio and container plants
- Conservatory and greenhouse
- Flower borders and beds
Pruning
No pruning required
Pests
May be susceptible to caterpillars, mealy bugs, mites, glasshouse thrips, vine weevil and aphids
Diseases
May be susceptible to grey moulds, powdery mildews, stem rot and rhizome rot
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.