New Hampshire in bloom

New Hampshire bloom calendar

Darker = more flowering sightings that month. Based on iNaturalist research-grade observations in New Hampshire marked “Flowering,” as of October 17–23, 2026. Garden flowers have few records because research-grade data leaves out planted ones.

Families on this list

The plant families with the most flowers on this list, from iNaturalist taxonomy. Within each family, the most-observed flowers come first.

• Rosaceae (19): Roses (genus Rosa), Multiflora rose, White meadowsweet, Virginia strawberry, Rugosa rose, Steeplebush, Three-toothed cinquefoil, Common ninebark and 11 more
• Asteraceae (16): Common yarrow, Chicory, Black-eyed Susan, Bull thistle, Common dandelion, Oxeye daisy, New England aster, Common sunflower and 8 more
• Ericaceae (14): Ghost pipe, Mountain laurel, Eastern teaberry (wintergreen), Trailing arbutus (mayflower), Sheep laurel, Pipsissewa, Labrador tea, Lingonberry and 6 more
• Fabaceae (7): White clover, Red clover, Purple crownvetch, Bird's-foot trefoil, Tufted vetch, Lupine (large-leaved lupine), American yellowwood
• Viburnaceae (6): American black elderberry, Hobblebush, Japanese snowball viburnum, Nannyberry, Arrowwood viburnum, Koreanspice viburnum
• Ranunculaceae (6): Red columbine, Wood anemone, Marsh marigold, Round-lobed hepatica, Virgin's bower, Threeleaf goldthread
• Apocynaceae (4): Common milkweed, Lesser periwinkle, Swamp milkweed, Spreading dogbane
• Caprifoliaceae (4): Common snowberry, Twinflower, Seven-son flower, Weigela
• Aquifoliaceae (4): American holly, Winterberry, Inkberry, Japanese holly
• Liliaceae (4): Yellow trout lily, Bluebead lily, Canada lily, Garden tulip
• Hydrangeaceae (4): Sweet mock orange, Bigleaf hydrangea, Panicle hydrangea, Mountain hydrangea
• Asparagaceae (3): Solomon's plume (false Solomon's seal), Canada mayflower, Lily of the valley
• Rubiaceae (3): Partridgeberry, Buttonbush, Azure bluet
• Cornaceae (3): Canadian bunchberry, Cornelian cherry, Kousa dogwood
• Plantaginaceae (3): Butter-and-eggs (common toadflax), Purple foxglove, White turtlehead

Shortlists by growing conditions

Flowers on this list whose USDA PLANTS characteristics data gives the rating shown. USDA only rates some species, so these lists are not complete.

• High drought tolerance (8): Mountain laurel, Purple crownvetch, Eastern teaberry (wintergreen), Rugosa rose, Common snowberry, Tufted vetch, New Jersey tea, Common ninebark
• High moisture use (suits wet spots) (16): Chicory, Jack-in-the-pulpit, Buttonbush, Fireweed, Pickerelweed, Bird's-foot trefoil, Swamp milkweed, Canadian bunchberry, Marsh marigold, Sweet pepperbush, Winterberry, Red buckeye and 4 more
• Rapid growth rate (17): American pokeweed, Common jewelweed, Common selfheal, Red clover, Chicory, Black-eyed Susan, Common dandelion, Dame's rocket, American black elderberry, Fireweed, Common sunflower, Pearly everlasting and 5 more

How we picked these flowers

We started from iNaturalist's research-grade sightings in New Hampshire, most-observed first, left out grasses, sedges, trees and other plants with tiny or wind-pollinated flowers (plus poison ivy), kept at most three species per genus, and added New Hampshire's official flowers, plus flowering shrubs and trees with at least 3 garden or 10 wild iNaturalist records in New Hampshire and popular garden flowers that iNaturalist users record growing in New Hampshire. Every flower needs a CC0 or CC BY photo.

Rare plant list: New Hampshire Official Rare Plants List (Ncr 312, eff. Jan 1, 2020)
Invasive plant list: NH Prohibited Invasive Species List (Agr 3800, Table 3800.1)