New Hampshire Nature Guide: April 2026
April is true spring's arrival in lowland New Hampshire — peepers chorus from the wetlands, the first ephemerals open on the forest floor, and migration accelerates, while the White Mountains still hold deep snow above the valleys. The state greens from the Seacoast upward and the year's energy returns.
What to look for this week
- Feeders are at their winter peak — black-capped chickadees, nuthatches, and cardinals work the seed, with purple finches, redpolls, and siskins possible in a northern-finch irruption year.
- The Quadrantid meteor shower peaks in a short, sharp burst around January 3; watch the northeast after midnight from a dark White Mountains site.
- A planning week — order seeds early, especially the short-season varieties North Country and high-elevation gardens depend on, before they sell out.
Birds This Month
April migration surges across New Hampshire. Eastern phoebes arrive first among the flycatchers, tree swallows swoop over thawing ponds, and pine warblers, palm warblers, and yellow-rumped warblers lead the warbler wave. Ospreys return to Great Bay and lake nests, loons move back to the lakes as the ice goes out, and the first broad-winged hawks appear. Waterfowl peak on the rivers and Great Bay before pushing north.
This is the month of the American woodcock's twilight sky-dance over wet fields and the booming drum of the ruffed grouse in the uplands. Wild turkeys gobble and strut, eastern bluebirds and tree swallows claim nest boxes, and chipping sparrows, field sparrows, and brown-headed cowbirds return. Hermit thrushes begin to sing in the woods, and the first ruby-crowned and golden-crowned kinglets, winter wrens, and hermit thrushes filter through. Hang your hummingbird feeders by late April, just ahead of the first arrivals.
What's Blooming
April is when the New Hampshire forest floor finally bursts into spring ephemerals, racing to bloom before the canopy closes. In the rich, warmer southern woods come bloodroot, spring beauty, round-lobed hepatica, trout lily, Dutchman's breeches, and the first wild ginger, while marsh marigold glows gold in wet woods and seeps. Coltsfoot and the native bloodroot open in sunny disturbed ground, and trailing arbutus (mayflower) perfumes sandy pine woods.
In gardens, the bulb season peaks: crocus, daffodils, scilla, glory-of-the-snow, and early tulips bloom, and forsythia blazes yellow along roadsides. Pussy willow and the first shadbush (serviceberry) flower at woodland edges. The bloom runs weeks behind in the mountains and North Country, where the ground is just clearing of snow. The first half of April belongs to the south; the ephemeral wave climbs the state through the month, an early taste of the great wildflower flush to come in May.
Garden This Month
April is when New Hampshire gardens come alive in the lowlands. As soil dries enough to crumble in the hand, direct-sow the cool-season crops: peas, spinach, lettuce, arugula, radishes, carrots, beets, turnips, and kale, and plant potatoes, onion sets, and shallots. Set out hardened-off transplants of broccoli, cabbage, cauliflower, and lettuce under row cover. Indoors, keep tomatoes, peppers, and basil growing strong, and start squash, cucumbers, and melons a few weeks before the frost date.
Outdoors, finish dormant pruning before buds break, cut back last year's perennial stalks, divide and transplant perennials as they emerge, and top-dress beds with compost. Plant bare-root fruit trees, berries, asparagus, and rhubarb while dormant. Rake lawns gently once they've dried. Resist the urge to plant warm-season crops — the last frost is still weeks away everywhere in the state, from late May on the coast to mid-June in the mountains. Keep row cover handy for the inevitable hard April nights.
Zone 3b (high mountains & coldest north): still snow-bound much of April, with frost a daily certainty. Keep growing transplants indoors under lights and direct-sow nothing yet; the season here barely begins until mid-to-late May. Continue maple and early indoor work.
Zone 4b (North Country & uplands): snow recedes through the month but hard frost continues. As soil thaws and dries, direct-sow peas, spinach, and radishes late in April, and keep warm-season seedlings growing indoors well away from frost.
Zone 5b (interior & lakes region): the main soil-working month begins. Direct-sow peas, lettuce, spinach, carrots, beets, and radishes, plant potatoes and onion sets, and set out cole-crop transplants under cover; hold tomatoes and peppers for late May.
What's at the Farmers Market
April markets in New Hampshire bridge winter and spring. The last maple syrup of the season's boil arrives fresh, alongside the final winter-storage potatoes, carrots, beets, parsnips, cabbage, and onions. The first true spring crops appear by late month: greenhouse and field spinach, lettuce, arugula, and radishes, overwintered spinach and parsnips sweetened by frost, the first rhubarb, and foraged ramps and fiddleheads by month's end.
This is the start of plant-sale season: greenhouses and markets fill with vegetable seedlings, herbs, pansies, and cool-season annuals for gardeners eager to plant. Raw honey, farmstead cheeses, eggs, and pasture-raised meats round out the farm store. Choose the freshest, crispest greens and use them within days; pick firm rhubarb stalks and refrigerate them in a bag. Early-season fiddleheads should be tight, bright-green coils. The markets grow livelier each week as spring climbs the state from the Seacoast inland.
Night Sky This Month
April nights are mild enough for comfortable stargazing as the spring sky takes over. Leo the Lion with bright Regulus stands high in the south, the Big Dipper rides overhead, and its handle arcs to brilliant orange Arcturus in Boötes and on to blue-white Spica in Virgo — the classic "arc to Arcturus, speed to Spica." The winter stars of Orion and the Hexagon sink into the western twilight.
The Lyrid meteor shower peaks around April 22, radiating from near bright Vega, which clears the northeastern horizon late in the evening; it is a modest but reliable shower, best after midnight from a dark site. The realm of galaxies in Leo, Virgo, and Coma Berenices climbs high, rewarding binoculars and telescopes from dark skies. The North Country and White Mountains offer the darkest views, and an aurora is possible on active nights. The printable New Hampshire night-sky guide gives this year's exact Lyrid peak and planet positions.
Butterflies & Pollinators
April brings New Hampshire's butterfly season to life in the lowlands. The overwintered mourning cloak, eastern comma, and gray comma are now flying freely on warm days, joined by the year's first fresh-brood species: the tiny powder-blue spring azure appears in the woods, the white-and-orange cabbage white returns to gardens, and the first clouded sulphurs and the early elfins and spring-flying duskywings show in dry, sunny clearings.
Migrants may arrive on southerly winds — the first red admirals and American ladies can appear in good flight years. The overwintered fliers seek out willow catkins, the first dandelions, and tree sap. The mountains and far north stay too cold for much butterfly activity yet. For gardeners, April is the time to plant native milkweed and a succession of nectar plants, and to hold off on cleaning up leaf litter and hollow stems until the weather settles, protecting the overwintering insects still emerging.
Trees This Month
April is leaf-out's beginning in lowland New Hampshire and the close of sugaring. Red maple and silver maple finish flowering and set their winged red samaras, and sugar maple and the birches push out catkins and the first tiny leaves. Shadbush (serviceberry) opens its lacy white flowers along woodland edges and streams — among the first trees to bloom — followed by the first cherries and aspens leafing out.
The forest moves from gray to a faint green haze, climbing the state from the Seacoast upward through the month; the mountains and North Country lag well behind. The conifers — white pine, red spruce, balsam fir, and hemlock — stand dark and full as the deciduous canopy slowly fills in around them. Oaks, hickories, and ash are the last to stir, their buds barely swelling. By late April the south wears its first true green, while the high peaks remain bare and snow-streaked.
Go deeper with the New Hampshire guides
The complete New Hampshire birding, native-plant, wildflower, and night-sky guides — or the whole year in one bundle.
Same month elsewhere: April in New Jersey · April in New Mexico · April in New York