Quick answer: 5 native New Hampshire plants have a recorded bloom range that includes February.
5 species
- American elm Ulmus americana · 4 states
- Eastern cottonwood Populus deltoides · 14 states
- Eastern red columbine Aquilegia canadensis · 36 states
- Slippery elm Ulmus rubra · 2 states
- Virginia springbeauty Claytonia virginica · 10 states