Frangula — 6 species
Botanical species in the genus Frangula recorded in the PlantPeers database.

Frangula alnus
Frangula alnus
Family: Rhamnaceae
Cultivation
Frangula alnus is a very cold-hardy plant, able to tolerate temperatures down to around -35°c when fully dormant. An easily grown plant, it succeeds in any reasonably good soil, preferring neutral to acid conditions. It grows well on damp or peaty soils.
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Frangula californica
Frangula californica
Family: Rhamnaceae
Cultivation
Frangula californica is a moderately cold-hardy plant, able to tolerate short periods with temperatures down to around -15°c when fully dormant. It grows best in areas with hot summers. In areas with cooler summers (even if the winters are mild), such as the maritime regions of the temperate zone, it often grows poorly, failing to properly ripen its wood and suffering frost damage over the winter.
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Frangula caroliniana
Frangula caroliniana
Family: Rhamnaceae
Cultivation
Frangula caroliniana is a moderately cold-hardy plant according to one report, which says that it is able to tolerate temperatures down to around -20°c when fully dormant, though another report suggests that it does not grow well in temperate zones with cool summers. Prefers a moist moderately fertile soil in sun or partial shade. Succeeds in any reasonably good soil, whether moderately acid or alkaline.
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Frangula crenata
Frangula crenata
Family: Rhamnaceae
Cultivation
Frangula crenata has a very wide distribution from the warm temperate regions of China and Japan to the tropics of southeast Asia. Plants from the north of its range are known to be very frost hardy, with one report suggesting they can tolerate temperatures down to around -30°c.
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Frangula purshiana
Frangula purshiana
Family: Rhamnaceae
Cultivation
Frangula purshiana is a moderately cold-hardy plant, able to tolerate temperatures down to around -15°c when fully dormant, 238. Succeeds in any reasonably good soil in sun or partial shade. Plants are very tolerant of shade.
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