Carolina rose
Rosa carolina
A genus split is not a placement verdict.
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The cone-calorimeter row tested cured foliage and twigs of Rosa carolina at 25 kilowatts per square metre. The authors did not place that result in a named high or low effective-heat group, so the measurement stays distinct from the recommendation rows.
The support for the on-list result includes low-flammability entries, a wildfire-resistant table for Michigan, and a fire-resistant landscaping entry from Maine. Their exact language and placements remain in the evidence table, while the cured test state is called out under performance conditions.
The two applicable hardiness records do not print the same boundary. One gives a 4–9 range; the other derives a minimum of 2b from a recorded temperature. Both remain available in hardiness evidence.
- Form
- shrub
- Mature height
- ~5 ft
- Water need
- low
- Rated in
- Global; Maine; Michigan / Great Lakes; Ohio / Midwest +2
- Uses
- specimen, hedge