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Barberries Mahonia

The rated Mahonia records split: 2 fire-resistant, 1 keep-away, 1 in documented conflict. These counts describe the cited records — 6 records carrying 24 evidence rows from 19 cited sources; they do not make one verdict for the genus.

Rated as a group: Creeping grape holly Mahonia spp. Fire-resistant Consensus 3 sources rate the genus as a whole. Species evidence never rolls upward into a genus verdict, and genus claims never override a species record. ›

Fire-resistant

1 species

Mahonia Fire-resistant Mahonia × media Limited evidence · 1 source genus-level claims ↑

Keep away

1 species

Beale's mahonia Keep away Mahonia bealei Limited evidence · 2 sources Zones 6–6 genus-level claims ↑

Documented conflict

1 species

honest ties — treat conservatively near structures

Oregon grape Documented conflict Mahonia aquifolium the PNW-590 regional list says low · Ohio's OSU Bulletin 921 says high Zones 2–2 genus-level claims ↑

Awaiting evidence

2 species

About barberries

Corpus context. Mahonia is the directory's #110 largest of 550 genus groups: 6 records carrying 24 evidence rows from 19 cited sources, recorded as shrub , hardy across USDA zones 2–6. Recorded trait flags: 1 carry high foliar moisture flags — each cited on its page. Those are corpus facts, not a whole-genus flammability claim.

More about Mahonia: Wikipedia — external references; not evidence sources.

Where rated barberries grow

Tagged as growing in 26 states.

See Mahonia on Grow → · JSON