Photo by Melody

PlantFiles: Ear-leaf Nightshade, Wild Tobacco Bush, Bugweed, Tree Tobacco
Solanum mauritianum

Family: Solanaceae (so-lan-AY-see-ee) (Info)
Genus: Solanum (so-LAN-num) (Info)
Species: mauritianum (maw-rih-tee-AY-num) (Info)

Synonym:Solanum auriculatum

2 members have or want this plant for trade.

Tropicals and Tender Perennials

24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)
30-40 ft. (9-12 m)

18-24 in. (45-60 cm)

USDA Zone 11: above 4.5 °C (40 °F)

Sun Exposure:
Full Sun

All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Pollen may cause allergic reaction

Bloom Color:
White/Near White

Bloom Time:
Blooms all year


Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
From seed; direct sow outdoors in fall

Seed Collecting:
Ferment seeds before storing
Wear gloves to protect hands when handling seeds

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to view:

By kennedyh
Thumbnail #1 of Solanum mauritianum by kennedyh

By kennedyh
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By RosinaBloom
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By RosinaBloom
Thumbnail #6 of Solanum mauritianum by RosinaBloom


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive RosinaBloom On Apr 15, 2013, RosinaBloom from Waihi
New Zealand (Zone 1) wrote:

Solanum mauritianum is an exotic shrub/tree commonly known in New Zealand as Woolly Nightshade, and is classified as a national surveillance plant pest. Woolly Nightshade is extremely invasive out-competing surrounding flora due to its fast growth and large annual seed mass. It is a native of South America, including Northern Argentina, Southern Brazil, Paraguay and Uruguay. It has become a widespread invasive weed in New Zealand, the Cook Islands, Fiji, the Hawaii’s, New Caledonia, Norfolk Island, the Solomon Islands, Tonga, Reunion Island, Mauritius, Madagascar, Australia, India and several southern African countries.
Woolly Nightshade is poisonous - to humans and to many organisms - and handling of the plant can cause irritation and nausea. The dust from the plant can cause respiratory problems if exposure to the plant is prolonged. Because of its ability to affect human health, and of its aggressive fast growing character, it is illegal in some areas of New Zealand to sell, propagate, or distribute any part of the plant. The plant has a life of up to thirty years, and can grow up to 10 m tall. Its grey-green leaves are covered with felt-like hairs, and its purple flowers with yellow centers can bloom all year round. Fruiting occurs in late spring to early summer. It is tolerant of many soil types, and quickly becomes established around plantations, forest margins, scrub and open land.

Positive WORMS4AFRICA On Jan 2, 2012, WORMS4AFRICA from HOWICK
South Africa wrote:

I use this plant to feed my Earthworms, l run a Earthworm/Recycling business and am having fantastic results from my earthworms processing the leaves of this plant. The ph of the liquid fertilizer is 3 times stronger than when feeding them vegetable waste.



This plant has been said to grow in the following regions:

Welaka, Florida

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