Pennsylvania Nature Guide: March 2026
March is the turn of the season in Pennsylvania — ice breaks on the rivers, waterfowl and the first songbirds pour back through, the spring peepers begin calling from the wetlands, and the earliest woodland ephemerals open on the warm Piedmont slopes.
What to look for this week
- Feeders are at their winter peak across Pennsylvania — cardinals, chickadees, titmice, and juncos work the seed while the last Christmas Bird Counts wrap up statewide.
- The Quadrantid meteor shower peaks in a short, sharp burst around January 3 — watch after midnight from a dark plateau like Cherry Springs State Park.
- A planning week — review last season and order seeds early, before the popular short-season varieties for the northern tier sell out.
Birds This Month
March is a month of return and motion. The Snow Goose and Tundra Swan spectacle at Middle Creek reaches its climax in the first week, then the great white flocks lift off north and the impoundments empty. Behind them comes a steady push: red-winged blackbirds, common grackles, eastern phoebes, killdeer, and American woodcock, whose males begin their spiraling sky-dance and nasal peent calls over old fields at dusk.
Waterfowl crowd the thawing wetlands and rivers — wood ducks, northern pintail, green-winged teal, ring-necked ducks, and hooded mergansers — and the first tree swallows hawk insects over the water by month's end. Bald eagles are now incubating eggs, great horned owls have downy young, and the first turkey vultures ride the warming ridges. In the woods, eastern bluebirds, song sparrows, and Carolina wrens are in full song, and the male ruffed grouse begins drumming on his log in the young forest.
What's Blooming
March opens Pennsylvania's wildflower year. On warm, rich slopes and floodplain woods in the south, the first spring ephemerals appear: skunk cabbage in full bloom in the wet woods, then bloodroot with its single white flower wrapped in a curled leaf, Virginia spring beauty dotting the leaf litter, trout lily raising its mottled leaves, and the first hepatica and harbinger-of-spring on protected banks.
The pace depends sharply on elevation — the Piedmont and lower river valleys lead, while the Allegheny and Pocono highlands lag two to three weeks behind. In gardens, crocus, snowdrops, winter aconite, and the first daffodils bloom, and native red maple and silver maple hang their tiny red flowers high overhead. Coltsfoot opens its yellow dandelion-like heads on bare roadside banks. Watch the south-facing wooded slopes first — they wake weeks before the cool, shaded ravines and the cold northern mountains.
Garden This Month
March is when Pennsylvania gardens wake up, beginning in the south and moving north and up in elevation. The first rule is to wait until the soil is workable — squeeze a handful, and if it crumbles rather than forming a wet ball, it's ready; working soggy soil destroys its structure. As beds dry, direct-sow the hardy cool-season crops: peas, spinach, radishes, lettuce, arugula, carrots, and beets, and set out onion sets, potatoes, and brassica transplants.
Indoors under lights, the seedling shelf fills with tomatoes, peppers, eggplant, and herbs started for May transplanting. Outdoors, prune dormant apple and pear trees, grapes, and summer-blooming shrubs before bud break, cut back last year's perennials and ornamental grasses, and gradually pull back winter mulch as growth begins. Rake debris, top-dress beds with compost, and clean out the vegetable garden — but leave some leaf litter and stems for the overwintering pollinators still emerging.
Zone 5b (Allegheny & northern uplands): still mostly frozen early, thawing by month's end. Start seedlings indoors, prune dormant trees, and wait — direct sowing of peas and spinach generally waits until late March or April here as the soil dries.
Zone 6b (central & western PA): as soil dries, direct-sow peas, spinach, radishes, and lettuce; set out onion sets and plant potatoes. Prune fruit trees and grapes before bud break, and uncover overwintered beds gradually.
Zone 7a (southeastern Piedmont): the prime early-planting window. Direct-sow peas, spinach, radishes, carrots, beets, and lettuce, transplant brassicas and onions, and plant potatoes — the soil is workable weeks ahead of the mountains.
What's at the Farmers Market
March markets are still in their late-winter mode, but the maple stands are now the star. Fresh maple syrup flows from the Pocono and northern-tier sugarbushes, sold by the jug at producer stands and winter markets. The storage crops continue — apples, potatoes, onions, carrots, beets, parsnips, and winter squash — though many are now at the end of their season and softening.
High-tunnel and greenhouse growers supply the first truly fresh greens: tender spinach, lettuce, kale, arugula, and microgreens, plus overwintered scallions and the first cuttings of cool-season herbs. Pennsylvania's Kennett Square mushrooms stay in full supply. Buy maple syrup by color grade for the flavor strength you want and refrigerate after opening; choose the freshest, perkiest greens and use them quickly; and check storage apples carefully, picking only the firm, heavy ones as the winter stock runs down.
Night Sky This Month
March straddles the seasons in the night sky, with the spring equinox near the 20th bringing equal day and night. Early evening still holds brilliant Orion and the Winter Hexagon sinking into the west, while Leo the Lion climbs high in the east with the bright star Regulus marking the bottom of its backward question-mark 'Sickle.' The Big Dipper swings up overhead, its handle arcing to orange Arcturus rising in the northeast.
There is no major meteor shower this month, so March favors galaxy hunting: the Leo Triplet and the rich galaxy fields of Leo, Virgo, and Coma Berenices climb into view, faint smudges that resolve beautifully in a telescope under dark skies like those at Cherry Springs State Park. As the nights warm and lengthen toward equinox, stargazing grows more comfortable. The printable Pennsylvania night-sky guide gives this year's exact planet positions, conjunctions, and the dark-sky sites best suited to your part of the state.
Butterflies & Pollinators
March awakens Pennsylvania's first butterflies. On warm, sunny afternoons, the overwintered adults emerge in earnest: mourning cloaks patrol sunlit woodland edges and forest roads, eastern commas and question marks bask on bark and bare ground, and the small spring azure — a flake of pale blue — takes flight in the woods in the warmer south. These are the year's true pioneers, flying weeks before any flowers offer much nectar.
The migratory and brood species are still to come. Monarchs are only now leaving Mexico, their first generation breeding far to the south and still weeks from reaching Pennsylvania. The cabbage white — that ubiquitous garden butterfly — appears late in the month as the first of its many broods emerges. Watch for early butterflies nectaring at willow catkins, coltsfoot, dandelions, and the first spring beauties on warm afternoons, and keep leaf litter and standing stems in place a while longer, as many pollinators are still tucked inside.
Trees This Month
March is bud-break and flowering season for Pennsylvania's early trees. The red maple and silver maple hang clouds of tiny red and yellow-green flowers high in the canopy — the first trees to bloom — followed by the catkins of American hazelnut, speckled alder, and the silvery, opening pussy willows along wet edges. The sugar-maple sap run winds down as the buds finally swell and break.
In the southeastern valleys, the show begins: spicebush haze the understory yellow-green, and the first ornamental star magnolias and forsythia bloom in gardens. The conifers hold steady — eastern hemlock, the state tree, dark in the gorges; eastern white pine on the ridges; and red spruce in the high country. Look up to catch the brief, easily missed flowering of the maples and the swelling buds on every twig, the woods poised to leaf out as soon as April warms.
Go deeper with the Pennsylvania guides
The complete Pennsylvania birding, native-plant, wildflower, and night-sky guides — or the whole year in one bundle.
Same month elsewhere: March in Rhode Island · March in South Carolina · March in South Dakota