Begonia × intermedia 'Bertinii'
- available to order from winter 2020
- 1 tuber
- Position: full sun or partial shade
- Soil: moderately fertile, humus-rich, well-drained soil
- Rate of growth: average to fast-growing
- Flowering period: May to the first frosts
- Hardiness: tender (needs frost protection)
- Bulb size: 5/6
This trailing begonia will provide long-lasting colour in hanging baskets, containers or window boxes. Alternatively plant it along the front edge of a border or path where it can spill over, softening the edges.
- Garden care:Pot up in early spring when the growth can be seen emerging from the tubers. Begonias are tender so must be protected by frosts, however you can pot them up and grow them on under glass from January onwards. The indented side of the tuber is the top, and this should just be covered by a fine layer of compost. Water well and keep them in a bright, warm spot, watering again only when the soil becomes quite dry. Once they are actively growing they can be watered more regularly, especially those growing in sunnier positions, but make sure that the compost or soil is never overly wet or waterlogged. During the growing season they can be fed with a balanced liquid fertiliser. Begonias grown in the ground should be lifted before the first hard frosts and left to die back before being stored in a well ventilated, dry place over the winter. Container-grown plants should be brought under cover during winter and 'potted on' into a slightly larger container each year in spring.