🌸 State flowers
New Hampshire in bloom
New Hampshire's official flowers are the purple lilac (1919) and the pink lady's slipper (1991). Meet them, then explore 109 New Hampshire wildflowers and garden favorites by bloom month.
Purple lilac
Syringa vulgaris
Named New Hampshire's official state flower in 1919 (N.H. RSA 3:5).
Meet the lilac →
Pink lady's slipper
Taraxacum officinale
Named New Hampshire's official state wildflower in 1991 (N.H. RSA 3:17). In New Hampshire, most flowering sightings come in April–June.
Meet the common dandelion →Sources: N.H. RSA 3:5; N.H. RSA 3:17; iNaturalist flowering records.
New Hampshire flower gifts
State flower gifts for anyone who loves New Hampshire.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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Purple lilac print
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Pink lady's slipper print
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New Hampshire wildflower map
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New Hampshire mug
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Pressed-flower bookmark
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Wildflower seed favors
Explore 109 New Hampshire flowers
100 wildflowers and flowering shrubs, picked from New Hampshire's most-observed flowering plants on iNaturalist, plus 9 garden favorites. Filter by bloom month or type.
Showing 107 flowers
Canada mayflower
Maianthemum canadense
🌼 Blooms in NH: May–July
6,936 NH sightings on iNaturalist
Canadian bunchberry
Cornus canadensis
🌼 Blooms in NH: May–July
6,290 NH sightings on iNaturalist
Hobblebush
Viburnum lantanoides
🌼 Blooms in NH: May–June
5,702 NH sightings on iNaturalist
Pink lady's slipper
Cypripedium acaule
🌼 Blooms in NH: May–June
5,286 NH sightings on iNaturalist
Bluebead lily
Clintonia borealis
🌼 Blooms in NH: May–July
4,572 NH sightings on iNaturalist
Partridgeberry
Mitchella repens
🌼 Blooms in NH: June–July
4,352 NH sightings on iNaturalist
Painted trillium
Trillium undulatum
🌼 Blooms in NH: May–June
4,317 NH sightings on iNaturalist
Ghost pipe
Monotropa uniflora
🌼 Blooms in NH: June–September
3,765 NH sightings on iNaturalist
Northern starflower
Lysimachia borealis
🌼 Blooms in NH: May–June
3,581 NH sightings on iNaturalist
Eastern teaberry (wintergreen)
Gaultheria procumbens
🌼 Blooms in NH: July–August
3,289 NH sightings on iNaturalist
Threeleaf goldthread
Coptis trifolia
🌼 Blooms in NH: April–June
3,119 NH sightings on iNaturalist
Diapensia
Diapensia lapponica
🌼 Blooms in NH: May–June
2,978 NH sightings on iNaturalist
White meadowsweet
Spiraea alba
🌼 Blooms in NH: June–September
2,916 NH sightings on iNaturalist
Colt's-foot
Tussilago farfara
🌼 Blooms in NH: April–May
2,743 NH sightings on iNaturalist
Sheep laurel
Kalmia angustifolia
🌼 Blooms in NH: June–July
2,596 NH sightings on iNaturalist
Azure bluet
Houstonia caerulea
🌼 Blooms in NH: April–June
2,451 NH sightings on iNaturalist
Red trillium
Trillium erectum
🌼 Blooms in NH: April–June
2,363 NH sightings on iNaturalist
Lingonberry
Vaccinium vitis-idaea
🌼 Blooms in NH: June–July
2,330 NH sightings on iNaturalist
Common milkweed
Asclepias syriaca
🌼 Blooms in NH: June–July
2,247 NH sightings on iNaturalist
Whorled wood aster
Oclemena acuminata
🌼 Blooms in NH: July–October
2,172 NH sightings on iNaturalist
Three-toothed cinquefoil
Sibbaldiopsis tridentata
🌼 Blooms in NH: June–August
2,065 NH sightings on iNaturalist
Labrador tea
Rhododendron groenlandicum
🌼 Blooms in NH: June–July
2,057 NH sightings on iNaturalist
Red clover
Trifolium pratense
🌼 Blooms in NH: June–October
2,035 NH sightings on iNaturalist
Common jewelweed
Impatiens capensis
🌼 Blooms in NH: July–September
1,921 NH sightings on iNaturalist
American witch-hazel
Hamamelis virginiana
🌼 Blooms in NH: September–November
1,861 NH sightings on iNaturalist
Trailing arbutus (mayflower)
Epigaea repens
🌼 Blooms in NH: April–May
1,811 NH sightings on iNaturalist
Common yarrow
Achillea millefolium
🌼 Blooms in NH: June–October
1,763 NH sightings on iNaturalist
Solomon's plume (false Solomon's seal)
Maianthemum racemosum
🌼 Blooms in NH: May–June
1,708 NH sightings on iNaturalist
Roses (genus Rosa)
Rosa
🌼 Blooms in NH: June–September
1,696 NH sightings on iNaturalist
Common selfheal
Prunella vulgaris
🌼 Blooms in NH: June–September
1,632 NH sightings on iNaturalist
Orange hawkweed
Pilosella aurantiaca
🌼 Blooms in NH: June–September
1,612 NH sightings on iNaturalist
Mountain woodsorrel
Oxalis montana
🌼 Blooms in NH: June–July
1,577 NH sightings on iNaturalist
Yellow trout lily
Erythronium americanum
🌼 Blooms in NH: April–May
1,544 NH sightings on iNaturalist
Purple pitcher plant
Sarracenia purpurea
🌼 Blooms in NH: May–August
1,517 NH sightings on iNaturalist
Jack-in-the-pulpit
Arisaema triphyllum
🌼 Blooms in NH: May–June
1,477 NH sightings on iNaturalist
Sessile bellwort
Uvularia sessilifolia
🌼 Blooms in NH: April–May
1,402 NH sightings on iNaturalist
Japanese knotweed
Reynoutria japonica
🌼 Blooms in NH: August–September
1,274 NH sightings on iNaturalist
Purple loosestrife
Lythrum salicaria
🌼 Blooms in NH: July–September
1,233 NH sightings on iNaturalist
Rhodora
Rhododendron canadense
🌼 Blooms in NH: May–June
1,209 NH sightings on iNaturalist
Multiflora rose
Rosa multiflora
🌼 Blooms in NH: June
1,166 NH sightings on iNaturalist
White clover
Trifolium repens
🌼 Blooms in NH: May–September
1,129 NH sightings on iNaturalist
Tufted vetch
Vicia cracca
🌼 Blooms in NH: June–September
1,123 NH sightings on iNaturalist
Fringed polygala
Polygaloides paucifolia
🌼 Blooms in NH: May–June
1,120 NH sightings on iNaturalist
American pokeweed
Phytolacca americana
🌼 Blooms in NH: July–October
1,117 NH sightings on iNaturalist
Pickerelweed
Pontederia cordata
🌼 Blooms in NH: June–August
1,107 NH sightings on iNaturalist
Wood anemone
Anemonoides quinquefolia
🌼 Blooms in NH: April–May
1,081 NH sightings on iNaturalist
Queen Anne's lace (wild carrot)
Daucus carota
🌼 Blooms in NH: July–September
1,080 NH sightings on iNaturalist
Steeplebush
Spiraea tomentosa
🌼 Blooms in NH: July–August
1,071 NH sightings on iNaturalist
Round-leaved sundew
Drosera rotundifolia
🌼 Blooms in NH: June–August
1,070 NH sightings on iNaturalist
Mountain laurel
Kalmia latifolia
🌼 Blooms in NH: June–July
1,041 NH sightings on iNaturalist
Spreading dogbane
Apocynum androsaemifolium
🌼 Blooms in NH: June–August
1,016 NH sightings on iNaturalist
Virginia strawberry
Fragaria virginiana
🌼 Blooms in NH: May–June
1,010 NH sightings on iNaturalist
Creeping foamflower
Tiarella stolonifera
🌼 Blooms in NH: May–June
993 NH sightings on iNaturalist
White turtlehead
Chelone glabra
🌼 Blooms in NH: August–September
967 NH sightings on iNaturalist
Bird's-foot trefoil
Lotus corniculatus
🌼 Blooms in NH: June–September
950 NH sightings on iNaturalist
Buttonbush
Cephalanthus occidentalis
🌼 Blooms in NH: July–August
896 NH sightings on iNaturalist
Swamp candles
Lysimachia terrestris
🌼 Blooms in NH: June–July
883 NH sightings on iNaturalist
Black-eyed Susan
Rudbeckia hirta
🌼 Blooms in NH: June–October
878 NH sightings on iNaturalist
Common boneset
Eupatorium perfoliatum
🌼 Blooms in NH: July–October
806 NH sightings on iNaturalist
Oxeye daisy
Leucanthemum vulgare
🌼 Blooms in NH: June–August
766 NH sightings on iNaturalist
Purple crownvetch
Securigera varia
🌼 Blooms in NH: June–September
727 NH sightings on iNaturalist
American white water lily
Nymphaea odorata
🌼 Blooms in NH: June–September
706 NH sightings on iNaturalist
Cardinal flower
Lobelia cardinalis
🌼 Blooms in NH: July–September
689 NH sightings on iNaturalist
Bloodroot
Sanguinaria canadensis
🌼 Blooms in NH: April–May
665 NH sightings on iNaturalist
American black elderberry
Sambucus canadensis
🌼 Blooms in NH: June–July
653 NH sightings on iNaturalist
Bull thistle
Cirsium vulgare
🌼 Blooms in NH: July–September
651 NH sightings on iNaturalist
Common tansy
Tanacetum vulgare
🌼 Blooms in NH: July–October
626 NH sightings on iNaturalist
Garlic mustard
Alliaria petiolata
🌼 Blooms in NH: May–June
626 NH sightings on iNaturalist
Virgin's bower
Clematis virginiana
🌼 Blooms in NH: July–August
549 NH sightings on iNaturalist
Lesser periwinkle
Vinca minor
🌼 Blooms in NH: April–May
547 NH sightings on iNaturalist
Sweet pepperbush
Clethra alnifolia
🌼 Blooms in NH: July–August
537 NH sightings on iNaturalist
Lupine (large-leaved lupine)
Lupinus polyphyllus
🌼 Blooms in NH: May–July
502 NH sightings on iNaturalist
Maiden pink
Dianthus deltoides
🌼 Blooms in NH: June–August
494 NH sightings on iNaturalist
Fireweed
Chamaenerion angustifolium
🌼 Blooms in NH: July–September
491 NH sightings on iNaturalist
Red columbine
Aquilegia canadensis
🌼 Blooms in NH: May–June
488 NH sightings on iNaturalist
Butter-and-eggs (common toadflax)
Linaria vulgaris
🌼 Blooms in NH: June–October
487 NH sightings on iNaturalist
Rugosa rose
Rosa rugosa
🌼 Blooms in NH: June–October
475 NH sightings on iNaturalist
Pipsissewa
Chimaphila umbellata
🌼 Blooms in NH: June–July
463 NH sightings on iNaturalist
Pearly everlasting
Anaphalis margaritacea
🌼 Blooms in NH: July–October
458 NH sightings on iNaturalist
Lowbush blueberry
Vaccinium angustifolium
🌼 Blooms in NH: May–September
454 NH sightings on iNaturalist
Common St. John's wort
Hypericum perforatum
🌼 Blooms in NH: June–August
445 NH sightings on iNaturalist
Dame's rocket
Hesperis matronalis
🌼 Blooms in NH: May–July
443 NH sightings on iNaturalist
Northern blue flag iris
Iris versicolor
🌼 Blooms in NH: May–July
440 NH sightings on iNaturalist
Allegheny monkeyflower
Mimulus ringens
🌼 Blooms in NH: July–August
426 NH sightings on iNaturalist
Blue vervain
Verbena hastata
🌼 Blooms in NH: June–September
411 NH sightings on iNaturalist
Marsh marigold
Caltha palustris
🌼 Blooms in NH: April–June
400 NH sightings on iNaturalist
Round-lobed hepatica
Hepatica americana
🌼 Blooms in NH: April–May
354 NH sightings on iNaturalist
Golden alexanders
Zizia aurea
🌼 Blooms in NH: May–June
339 NH sightings on iNaturalist
Lily of the valley
Convallaria majalis
🌼 Blooms in NH: May–June
327 NH sightings on iNaturalist
Twinflower
Linnaea borealis
🌼 Blooms in NH: June–August
324 NH sightings on iNaturalist
Rose pogonia
Pogonia ophioglossoides
🌼 Blooms in NH: June–July
304 NH sightings on iNaturalist
Tuberous grass pink
Calopogon tuberosus
🌼 Blooms in NH: June–July
291 NH sightings on iNaturalist
Spotted Joe-Pye weed
Eutrochium maculatum
🌼 Blooms in NH: July–September
282 NH sightings on iNaturalist
Bottle gentian
Gentiana clausa
🌼 Blooms in NH: August–October
281 NH sightings on iNaturalist
Wild geranium
Geranium maculatum
🌼 Blooms in NH: May–June
276 NH sightings on iNaturalist
Swamp milkweed
Asclepias incarnata
🌼 Blooms in NH: June–August
263 NH sightings on iNaturalist
Chicory
Cichorium intybus
🌼 Blooms in NH: June–October
261 NH sightings on iNaturalist
New England aster
Symphyotrichum novae-angliae
🌼 Blooms in NH: September–October
257 NH sightings on iNaturalist
Canada lily
Lilium canadense
🌼 Blooms in NH: June–July
218 NH sightings on iNaturalist
Purple foxglove
Digitalis purpurea
🌼 Blooms in NH: June–August
205 NH sightings on iNaturalist
Orange daylily
Hemerocallis fulva
🌷 Grown in New Hampshire gardens
139 NH sightings on iNaturalist
Purple coneflower
Echinacea purpurea
🌷 Grown in New Hampshire gardens
52 NH sightings on iNaturalist
Common sunflower
Helianthus annuus
🌷 Grown in New Hampshire gardens
15 NH sightings on iNaturalist
Daffodil
Narcissus pseudonarcissus
🌷 Grown in New Hampshire gardens
10 NH sightings on iNaturalist
Garden peony
Paeonia lactiflora
🌷 Grown in New Hampshire gardens
5 NH sightings on iNaturalist
Bigleaf hydrangea
Hydrangea macrophylla
🌷 Grown in New Hampshire gardens
0 NH sightings on iNaturalist
Garden tulip
Tulipa gesneriana
🌷 Grown in New Hampshire gardens
0 NH sightings on iNaturalist
New Hampshire bloom calendar
Show the full bloom calendar (flowers with 15+ New Hampshire flowering records, earliest bloomers first)
Darker = more flowering sightings that month. Based on iNaturalist research-grade observations in New Hampshire marked “Flowering,” as of October 17, 2026. Garden flowers have few records because research-grade data leaves out planted ones.
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 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)