Galphimia glauca is an evergreen flowering shrub from Mexico and Central America, grown for its sweet-scented yellow flower racemes that bloom from spring to the first frost. It thrives in full sun and well-drained soil, and tolerates drought and light frost.
Family
Malpighiaceae (Malpighi family)
Grows as
Shrub
Light
Full sun
Water
Water moderately during the growing season and let the soil dry between waterings; it tolerates drought once established.
Soil
Well-drained soil or sandy loam mix.
Temperature
18–30 °C; tolerates mild frost to about -2 °C, protect below that.
How easy
Easy
Native range
Mexico to Guatemala
Climate
seasonally dry tropical
About
Galphimia glauca, also known as rain of gold, golden showers, thryallis and shower of gold, is a flowering shrub in the Malpighiaceae family that is native to Central America.
Where it grows
It is native to Mexico, Guatemala and Panama, where it is found in semi-warm and temperate climates between 920 and 2600 m asl. In Mexico, it is native to select states in the central and northeast zones of the country. In the states of Aguascalientes, Guanajuato, Hidalgo, Jalisco, Nuevo Leon, Queretaro, Tamaulipas, and Zacatecas. It grows in fields associated with disturbed vegetation of deciduous and evergreen tropical forests, xeric scrub, oak, pine and juniper forests. The plant can adapt to drier climates and can resist mild frosts of up to -2 °C.
[Contains information from Leaf Area Index (LAI) and Heritage Trees from data.gov.sg (National Parks Board), made available under the terms of the Singapore Open Data Licence version 1.0]
Text excerpted from the Wikipedia article Galphimia glauca 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.