Begonia x hiemalis
Begonia x hiemalis Fotsch
Begonia x hiemalis is a succulent perennial.
Begonia x hiemalis is a species in the genus Begonia which contains approximately 1545 to 1724 species and belongs to the family of the Begoniaceae (Begonia Family). The type species of the genus is Begonia obliqua.
The perennials are comparatively fast-growing and reach heights of 30 to 45 centimetres. The plants reach a width of 30 to 60 centimetres.
Begonia x hiemalis is evergreen. The mid-green, simple leaves are alternate. They are cordate, crenate and petiolate. The surface of the leaves is glabrous.
Flowers and Fruits
Begonia x hiemalis produces cymes of pink flowers from April to July. The plants are dioecious.
The perennials produce loculicidal capsules.
The plants form root tubers.
The perennials prefer a sunny to half-shady situation on fresh to moist soil. The substrate should be sandy loam. They tolerate temperatures only above at least 1Â°C (USDA zone 10). Under glass use potting compost.
In summer the plants prefer moderate humidity, protection from direct sunlight. Tolerance of special soil conditions
- none: waterlogging
Suited for summer bedding and for hanging baskets, as well as suited as container plant and as indoor plant.
Maintenance and Propagation
- Repot as necessary in spring.
- For healthy growth apply a compound fertilizer monthly during growth.
- Water moderately in summer, give little water in winter.
- temperature in summer should be 19 to 23Â°C, in winter should be 19 to 23Â°C.
Pests and Diseases
Cankers indicate an infection with fireblight. Generously remove affected parts and destroy them.
A powdery white coat on the plants indicates an infection with powdery mildew. Remove affected plants and apply a fungicide. To prevent infection improve ventilation, keep the roots moist and do not water the plants from above.
White tufts or white covering on the lower surface of the leaves indicates an infection with downy mildew. Remove affected plants and apply a fungicide. To prevent infection improve ventilation, keep the roots moist and do not water the plants from above.
Fine webs on the plants indicate an infestation with red spider mites. These sap-sucking insects mainly appear under glass and can be controlled either with insecticide or biologically with parasitic mites.
White spots on flowers and leaves in combination with buds that do not open indicate an infestation with thrips. These insects can be controlled by improving ventilation and by watering regularly as well as by using an insecticide or biolocial pest control (predatory mites).
- Walter Erhardt, Erich GÃ¶tz, Nils BÃ¶deker, Siegmund Seybold: Der groÃe Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
- Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.