Bluewitch Nightshade (Solanum umbelliferum)

Plant Snapshot

Common Name: Bluewitch Nightshade
Latin Name: Solanum umbelliferum
Hardiness Zones: USDA zones 7–10
Typical Height: 1–3 ft (30–90 cm)
Typical Spread: 2–4 ft (60–120 cm)
Bloom Period: Late winter to spring in Mediterranean climates; timing varies by region
Soil Preferences: Well drained soils, lean to moderately fertile. Tolerates dry, rocky soils once established. Avoid soils that remain waterlogged.
Light Preferences: Full sun to part sun. Prefers full sun in coastal areas and some afternoon shade in very hot inland sites.
Toxicity: Likely contains Solanum alkaloids and is potentially toxic if eaten by people or pets. Exercise caution with children and animals and verify specifics with poison control or botanical toxicology sources.
Propagation: Typically propagated by seed or cuttings. Seeds from ripe berries and semi ripe cuttings are commonly used but methods should be verified.

Key Facts

A low evergreen to semi evergreen shrub native to California coastal and chaparral areas
Produces star shaped lavender to purple flowers with a yellow center
Often used in native plant and drought tolerant landscapes
Tolerates dry conditions once established and prefers well drained soil
Attracts pollinators when in flower
Sets small berries after flowering that are eaten by birds and may be toxic to people and pets
Best grown in full sun to part sun depending on site heat

Bluewitch Nightshade is a low California native shrub with star shaped lavender to purple flowers and a mounding habit that works well in native and drought tolerant gardens. It stays compact, attracts pollinators while in bloom and sets small berries that birds eat but may be toxic to people and pets.

Identification

Solanum umbelliferum is an evergreen to semi evergreen shrub reaching about 1 to 3 feet tall with a 2 to 4 foot spread. Flowers are star shaped, lavender to purple with a yellow center and appear in late winter to spring in Mediterranean climates; exact timing varies by region.

Where to grow and best uses

Use Bluewitch Nightshade as a low mounding shrub or informal groundcover in native plantings, dry slopes and drought tolerant borders. It performs best in full sun to part sun, with full sun favored near the coast and some afternoon shade beneficial in very hot inland sites.

Soil and watering

Plant in well drained soils. The species tolerates dry, rocky soils once established and will suffer in soils that remain waterlogged. Water regularly until established then reduce irrigation; overwatering or poor drainage often leads to decline or root rot.

Planting and spacing

Place plants roughly 2 to 4 feet apart to allow their mounding habit to fill in without overcrowding. Follow local seasonal planting guidance so young plants establish root systems before the hottest or coldest months.

After flowering and maintenance

Light pruning shapes the mounds and prevents legginess in richer soils. Removing spent stems can tidy the plant after bloom and help control spread when plants naturalize on favorable sites. In colder inland pockets some dieback may occur and can be pruned out in spring.

Toxicity and wildlife

Bluewitch Nightshade sets small berries after flowering that are eaten by birds. The plant likely contains Solanum alkaloids and is potentially toxic if eaten by people or pets, so keep children and animals away from berries and check with local poison control for specifics.

Frequently asked questions

How fast does Bluewitch Nightshade grow?: Growth is moderate; plants form a low mound and typically reach their mature 1 to 3 foot height and 2 to 4 foot spread over a few growing seasons depending on site and moisture.
Are the berries poisonous?: The berries are likely to contain Solanum alkaloids and may be toxic to people and pets. Birds eat the fruit. Confirm risks and severity with regional poison control resources.
Will it naturalize or become invasive?: As a California native it is commonly used in native plantings and drought tolerant landscapes and is not widely reported as invasive. Monitor young colonies and prune or remove seedlings if it spreads where unwanted.
What kind of soil is best?: Lean, well drained soils are preferred. Very fertile, water retentive soils can make plants leggy and reduce flowering; avoid sites that stay wet.