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Spanish broom

Spartium junceum

Also called Weaver's Broom, Genet, Weavers' Broom, Rush Broom

Spanish broom
Photo: Hans Hillewaert, CC BY-SA 3.0

Spanish broom is a vigorous, deciduous shrub from the Mediterranean that bears fragrant yellow pea-like flowers in late spring and summer. It thrives in full sun and well-drained, sandy soil, and it is a sole species in its genus.

Family
Fabaceae (Pea & bean family)
Grows as
Shrub
Light
Full sun
Water
Water regularly while establishing, then allow the soil to dry between waterings; it tolerates drought well once mature.
Soil
Well-drained, sandy or poor soil; tolerates alkaline conditions.
Temperature
Hardy to about -10 °C; protect young plants from severe frost.
How easy
Easy
Safety
Toxic: All parts contain alkaloids (including sparteine) that can cause vomiting, diarrhea, headache, convulsions, slowed heart rate and, in severe cases, coma.
Native range
Azores, S. Europe to E. Medit.
Climate
temperate

About

Spartium junceum, known as Spanish broom, rush broom, or weaver's broom, it is a species of flowering plant in the family Fabaceae and the sole species in the genus Spartium. It is closely related to the other brooms (in the genera Cytisus and Genista).

Safety

Few cases have been described of intoxication by the S. junceum, including accidental ingestion of different parts of the plant by children. The alkaloids found in all parts of the plant have toxic effects. They initially provoke a transitory stimulation of nicotinic cholinergic receptors followed by a persistent inhibition caused by desensitization. The sparteine has an effect on the heart, reducing its sensitivity and conductivity.

Symptoms present depending on dose, method of exposure, and time elapsed since exposure; these include irritation of the oral and pharyngeal mucosa, hypersalivation, vomiting, stomach pain and diarrhea. In severe cases, neurological symptoms (such as midriasis, headaches, delirium and convulsions) may be present, as well as hypotension, bradycardia, and coma.

Where it grows

This species is native to the Mediterranean in southern Europe, southwest Asia and northwest Africa, where it is found in sunny sites, usually on dry, sandy soils.

Uses

The plant is used as an ornamental plant in gardens and in landscape plantings. It has gained the Royal Horticultural Society's Award of Garden Merit.

Text excerpted from the Wikipedia article Spartium by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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