Biscayne Prickly Ash

Zanthoxylum coriaceum

Biscayne Prickly Ash is a hardy Florida Native, it's name comes from the "prickles" or spines that grow along the branches. It can be used as a small to medium-sized tree or large shrub. It blooms all year with small, fragrant green-white flowers that attracts pollinators and birds who enjoy the fruit. This species is quite rare, due to it being endangered in Florida and they are a host plant for Giant Swallowtail butterflies.  
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How to care for Biscayne Prickly Ash

Light. Full sun to partial sun.

Water. Water while it establishes. Once established it is highly drought tolerant and needs no extra water.

Soil and feeding. It prefers moist, well-drained sandy soil with some organic matter on top. Heavy feeding is not needed.

Size. A large shrub or small tree with a rounded, spreading crown, usually 15 ft or more. Growth is moderate.

Problems to watch. It does not tolerate long-term flooding by salt or brackish water.

Good to know. A rare Florida native of coastal hammocks from Key Biscayne to Palm Beach County. It tolerates moderate salt wind. It is a host plant for the giant swallowtail butterfly.

Sources: Natives for Your Neighborhood (Institute for Regional Conservation): Zanthoxylum coriaceum

 
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