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Guaiacum coulteri

Guayacan

This gnarly, evergreen, slow-growing shrub or small tree is native to the gravelly plains of western Mexico. The dark green, pinnately compound leaves may drop during periods of drought. Intense blue flowers occur from April through September in response to available moisture. Shiny red fruits add extra interest in the fall. Plant in full sun or part shade and well-drained soils, and site carefully to prevent frost damage.