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Datura

Datura stramonium (dah-TOO-rah stra-MOH-nee-um)

Family: Solanaceae Unknown Herbaceous (3-15 ft)

Jimsonweed is a tender, annual weed of the nightshade family (Solanaceae). It is native to Mexico but has become widely distributed in the United States and throughout the world. It is among the most prevalent weeds. The plant is tall, upright, bushy with a branching habit, growing 1 to 4 feet tall. It has dark green leaves and white or purple-tinged flowers that bloom at night and wilt by the next day. It is commonly found in disturbed areas, along roadsides, open fields, pastures, and the margins of crop fields. If ingested, it is a dangerous and toxic plant for humans, pets, and livestock. The genus name, Datura , means "white thorn-apple and is Sanskrit in origin. The common name, Jimsonweed, originated from the name "Jamestown weed." In Jamestown, Virginia, around the 1600's, some English soldiers ate some of the plant's leaves and became delirious. This fast-growing plant thrives in full sun and moist, well-drained soils of almost any type, but prefers humus-rich soil. They are drought-tolerant once established and sensitive to frost. The stem is erect, hollow, non-woody, green to purplish, with alternate, simple, coarsely toothed leaves. The flowers are fragrant, solitary, and trumpet-shaped with 5 shallow lobes. The blooms are visited and pollinated by nocturnal moths such as the Sphinx moth. The fruit is a spiked, egg-shaped capsule with 4 valves, containing numerous black seeds. If the stems or leaves are crushed, they produce a very foul odor. This weed produces a taproot, and if the plant is large, it may be difficult to remove by hand. Jimsonweed is listed as an invasive plant in parts of the United States. These plants produce many seeds that can remain viable in the soil for years. Insects, Diseases, and Other Plant Problems: All parts of this plant are toxic if ingested. Keep out of reach of small children and pets. The sap can cause skin irritation, and protective clothing and gloves are recommended when handling this plant.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 67 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (3-15 ft) Optimal soil pH Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Clematis virginiana Datura wrightii Lantana camara 'Miss Huff'

Full plant profile

Growing Conditions
Plant type
Annual; Herbaceous Perennial; Poisonous; Weed
Life cycle
Annual
USDA zones
7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
3 feet-6 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 1 ft. 0 in. - 4 ft. 0 in. | Width: 1 ft. 0 in. - 4 ft. 0 in.
Growth rate
Rapid
Canopy layer
4 - Herbaceous (3-15 ft)
Form & Appearance
Habit / form
Ascending; Erect; Multi-stemmed
Texture
Coarse
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf shape
Elliptical; Oblong
Leaf margin
Serrate
Leaf size
3-6 inches long, 3-6 inches wide
Hairs present
No
Leaf detail
The leaves are green, 3 to 7 inches long, 1.5 to 5.5 inches wide, ovate to oblong-elliptical, hairless, and the margins are wavy with coarse teeth. The petiole is up to 2 inches long. If the leaves are crushed, they produce a foul odor.
Flower color
Purple/Lavender; White
Flower form
Solitary
Flower shape
Trumpet
Flower size
3-6 inches
Flower detail
The flowers are trumpet-shaped, white to purple-tinged, and sometimes have a purple throat. They measure 2 to 4 inches long and 2 inches in width. Each flower has 5 lobes with a toothed tip, 5 stamens, and 1 style. The flowers bloom singly either in the leaf axils, at the branch tips, or at the forks of the stems. The calyx is tubular and about 2 inches long. The flower stalks are erect and up to 0.5 inches long. Flowers will open for only the evening and wilt by the next day. Flowers are produced from July to September.
Bloom time
Summer
Fruit color
Brown/Copper; Gold/Yellow; Green
Fruit type
Capsule
Fruit value
Showy
Fruit size
1-3 inches long, 1-3 inches wide
Fruit detail
The fruit is green and ripens to a light yellow-brown capsule, round to egg-shaped, measuring 1 to 1.75 inches long with prickles, and it is held erect on the stalk. The capsule splits open at maturity and is divided into 4 valves. Each fruit contains many flat, black kidney-shaped seeds, each measuring 1/6 inch long.
Stem color
Green; Purple/Lavender
Stem detail
The stems are smooth, hollow, green to purple, standing erect, and has many branches. The cross-section of the stem is rounded. When the stem is damaged, it has a foul odor.
Wildlife & Ecology
Native status
Unknown
Origin
Mexico
Distribution
Native: Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest. Introduced: United States--AL, AZ, AR, CA, CT, DE, DC, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN MS, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OR, PA, SC, SD, TN, TX, UT, VT, VA, WA, WV, and WI; Canada--Alberta, New Brunswick, Ontario, Prince Edward Island, Quebec, and Saskatchewan; most of Europe, Central America and the Caribbean, portions of South America, portions of Africa, portions of Australia, and portions of East Asia, China, and Japan.
Wildlife value
Attracts sphinx and hawk moths.
Attracts
Bees; Butterflies; Moths
Food & Medicine
Harvest time
Fall
Fruit type
Capsule

Edibility

Toxic if ingested

Uses (ethnobotany)

This plant is used as a poison and as a medical treatment. Most of the plant contains derivatives of atropine, scopolamine, and hyoscyamine. Low dosages of the plant can be used to treat asthma, muscle spasms, and Parkinson's disease. In high doses, hallucinations and coma can occur.

Landscape Use
Landscape location
Naturalized Area
Garden tags
#showy flowers #white flowers #poisonous #moth caterpillar host #large flowers #moth friendly #pasture #malodorous #frost tender #problem for dogs #problem for cats #problem for cattle #problem for children #problem for horses #weedy #contact dermatitis #poisonous to livestock #poisonous to pets #poisonous if ingested #erect #rapid growth #multistemmed #fragrant flowers #night blooming #bat friendly
Problems & Resistance
Problems
Poisonous to Humans; Problem for Cats; Problem for Children; Problem for Dogs; Problem for Horses; Weedy
Resistant to
Drought
Propagation
Seed
Poison severity
High
Poison parts
Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems
Poison symptoms
Ingestion can cause dilated pupils, fever, excessive thirst, loss of coordination, confusion, flushed skin, hallucinations, delirium, rapid and weak pulse, labored respirations, convulsions, and coma. Inhaling the scent of the flowers can cause headache and dizziness. The sap can cause a skin rash.
Toxic principle
Tropane alkaloids scopolamine, hyoscyamine, and atropine
Contact dermatitis
Yes
Toxicity summary
High severity poison; parts: Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems; contact dermatitis

Planted at Hunnicutt

Nobody’s planted this one yet.