Quick answer: 7 native Utah plants have a recorded bloom range that includes March.
7 species
- Bearberry Arctostaphylos uva-ursi · 16 states
- Canada wild rye Elymus canadensis · 18 states
- Creosote bush Larrea tridentata · 5 states
- Gambel oak Quercus gambelii · 6 states
- Gray alder Alnus incana · 12 states
- Quaking aspen Populus tremuloides · 24 states
- Winecup Callirhoe involucrata · 7 states