Bluewitch nightshade
Solanum umbelliferum · Solanaceae
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around bluewitch nightshade and prepare for winter.
ID card
- Common name
- Umbrella Nightshade, Ornamental Eggplant
- Family
- Solanaceae
- Type
- Shrub
- Foliage
- Evergreen
- Blooming
- Spring to summer (violet-blue flowers)
- Mature size
- 0.6 to 1.2 m tall
- Hardiness
- Tender (Mediterranean climate, protection needed in cold areas)
- Origin
- California, United States
Care
Light exposure
Place it in full sun or partial shade to encourage generous blooming. It tolerates coastal environments well and will handle dry conditions once established. Avoid full shade, which would reduce flowering.
Watering
Keep the soil lightly moist during growth, then reduce watering once established. In Mediterranean or warm climates, limit watering in winter. Avoid waterlogging, which would promote root rot.
Soil
Prefer well-draining, light, and rather poor to moderately fertile soil. This species adapts well to sandy or chalky soils typical of Mediterranean regions. Drainage is the key criterion.
Pruning and shaping
Prune lightly after flowering to maintain a compact shape and encourage branching. Remove dead or malformed wood in early spring. Moderate pruning is sufficient; this plant naturally maintains good structure.
Fertilizer
Apply balanced fertilizer in spring when vegetation resumes. A single annual application is usually enough for an established shrub. Avoid excess nitrogen, which would promote foliage at the expense of flowering.
Diseases and pests
Watch for aphids and whiteflies, common on Solanaceae. Powdery mildew can appear in humid conditions; ensure good air circulation. No serious problems if growing conditions are respected.
Did you know?
Solanum umbelliferum is a California endemic species rarely known in Europe, unlike its ornamental eggplant cousins. Its scientific name 'umbelliferum' refers to the umbel arrangement of its small violet flowers, a characteristic feature of Solanaceae. This plant once attracted the attention of California botanists for its remarkable hardiness in semi-arid coastal environments.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
- TomatoSolanum lycopersicum
- Sweet pepperCapsicum annuum
- EggplantSolanum melongena
- Cape gooseberryPhysalis peruviana
- Night jessamineCestrum nocturnum
- Potato vineSolanum laxum
Tips generated and checked by Viridia — adapt them to your local climate.