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SOLANUM

Commonly known as Blue potato bush, Paraguay nightshade

Genus of about 1400 species of annuals, herbaceous perennials, and evergreen, semi-evergreen and deciduous shrubs, trees and twining climbers from a worldwide range of habitats. Includes the potato, tomato and aubergine familes.

Natives comprise the 2 nightshades S. dulcamara, woody nightshade or bittersweet and S. nigrum, black nightshade. Atropa belladonna, deadly nightshade, although in the same family is a different, distinct plant.

Further Reading....

Solanum - Growing Guide

Evergreen
Ovate to lance-shaped, often wavy-margined, smooth, mid- to deep-green leaves 6-10cm (2½in) long
Blue
Blue purple
Height
2m (6½ft)
Spread
2m (6½ft)
Medium shrub
Typically grow to around 4-6 feet in height

Lax shrub, usually many-branched when mature. Produces axillary clusters to 6cm (2½in) across of 2-5 shallowly trumpet-shaped, flowers1-2.5cm (½-1in) across followed by ovoid red fruit 2.5cm (1in) long.
Half hardy - unheated greenhouse / mild winter
Hardy in coastal and relatively mild parts of the UK except in severe winters and a risk from sudden (early) frosts. May be hardy elsewhere with wall shelter or good micro-climate. Likely to be damaged or killed in cold winters. Plant can withstand temperatures down to -5°C (23°F)
Full sun

Details
Mature Size
Tips and Advice
Goes Well With
Planting Combinations
Other Suggestions
See Also...

Additional Features

	Pests & Diseases	Under glass - aphids, red spider mite, tomato spotted wilt, grey mould.
	Place of origin	Paraguay, Argentina
	Resistant to honey fungus	These plants have little or few problems with honey fungus.

Hardiness

Frost hardy (down to -5)

Pruning group

Pruning group 8

Suitable for: Wall trained shrubs and less vigorous climbers.
Action: For climbers 'spur prune' by cutting back 3-4 buds of the permanent framework. For wall trained shrubs cut back flowered shoots to within 2-4 buds of permanent framework.
When: Annually after flowers if on previous year's growth, or in late Winter or Spring if on current year's growth.

RHS group 12 & 13

Seasonal Interest