Texas Nature Guide: December 2026
December is full winter in Texas — the great waterbird flocks are in, the Christmas Bird Counts get underway, and the longest nights of the year open onto the brilliant winter sky. The deciduous trees are mostly bare, but the live oaks and junipers keep the land from looking empty.
What to look for this week
- Whooping cranes are wintering at Aransas NWR now, alongside flocks of sandhill cranes and snow geese on the coastal rice prairies.
- Texas Ruby Red grapefruit from the Rio Grande Valley is at peak; the trees hold ripe fruit and a few late white blossoms.
- Bare-root fruit trees and dormant native trees go in the ground now while everything is leafless and roots can settle before spring.
- The Quadrantid meteor shower peaks around January 3 in a short, sharp burst; look northeast after midnight away from city lights.
Birds This Month
December is winter birding at its fullest in Texas, and it is also Christmas Bird Count season — local counts run from mid-December into early January, and many of the nation's highest species totals come from Texas circles like Mad Island Marsh on the central coast and the lower Rio Grande Valley. It is a fine month to join a count and learn the local winter birds.
The coastal prairies and the Panhandle playas hold their peak numbers of sandhill cranes, snow and white-fronted geese, and ducks of a dozen kinds. The whooping cranes are settled in at Aransas NWR, reliably found on the Rockport boat tours. Bald eagles are easy to find at lakes and reservoirs statewide, often near the waterfowl they hunt.
The Rio Grande Valley is the December destination for many birders, where subtropical specialties — green jays, great kiskadees, plain chachalacas, and Altamira orioles — occur nowhere else in the country. At feeders statewide, the winter regulars hold steady: yellow-rumped warblers, sparrows, American goldfinches, and roving flocks of cedar waxwings stripping the berries.
This month's tip: sign up for a local Christmas Bird Count — it is the single best way to spend a December day birding, and your sightings feed a continent-wide dataset more than a century old.
What's Blooming
December is the quietest month for wildflowers across Texas, but the show has not gone completely dark. In South Texas and the frost-free lower Rio Grande Valley, native shrubs and the last hardy lantana, turk's cap, and tropical sage keep a little color going through the winter.
Elsewhere the landscape's brightness comes from fruit rather than flowers. Yaupon holly and possumhaw are loaded with red berries — possumhaw, which drops its leaves, shows its berries most dramatically against the bare branches — and these are what draw the winter robins and waxwings. American beautyberry may still hold a few magenta clusters in the eastern woods.
Where to see it: South Texas holds the last living color, while berry-laden hollies brighten woodland edges and gardens statewide. On the ground, the bluebonnet rosettes sown in fall are slowly fattening through the cool months, building toward the spring bloom to come. This is a good month to enjoy the structure of the dormant landscape and plan next year's plantings.
Garden This Month
December is the resting point of the Texas garden year, especially in the north, where the work is mostly protection and planning. Harvest the cold-hardy greens, carrots, and cole crops that actually improve with frost, and have mulch and frost cloth ready for the hard freezes that can drop in fast. In the southern zones the cool-season garden simply keeps producing through the mild month.
With most beds quiet, this is the season for the slower jobs. Do your dormant-season pruning of fruit trees, grapes, and roses, and plant bare-root fruit trees, roses, and asparagus while they are dormant and the soil is cool. Add compost to empty beds, clean and oil tools, and use the long evenings to plan next year's garden and order seed. Keep watering through dry winter spells, since established plants and especially fall-planted trees still need moisture even while dormant.
Zone 8a (north & north-central Texas): the garden is largely dormant — harvest hardy greens between freezes, protect tender plants from hard cold, and use the downtime to prune dormant fruit trees, plan next year, and add compost to empty beds.
Zone 8b (central Texas): cold-hardy greens, carrots, and cole crops keep producing and sweeten with the frost. Mulch against hard freezes, do dormant-season pruning, and plant bare-root fruit trees and roses late in the month.
Zone 9a (Gulf coast & south): the cool-season garden produces all month in the mild air — harvest greens, broccoli, and root crops, and sow another round of lettuce and spinach for winter cutting.
Zone 9b (deep south Texas): productive growing weather continues with frost unlikely — keep harvesting and sowing cool-season crops, and enjoy a winter garden that barely pauses.
What's at the Farmers Market
December is the peak of the Texas Ruby Red grapefruit season — the famous Rio Grande Valley fruit is at its sweetest now. Choose grapefruit and the in-season oranges that feel heavy for their size, a reliable sign of juiciness, and the Valley citrus keeps for weeks in the refrigerator. Other Texas citrus — including Meyer lemons and easy-peel mandarins — fills out the winter fruit stalls.
Cool-season vegetables are at their best, sweetened by the cold. Collards, kale, mustard, spinach, broccoli, cabbage, carrots, beets, and turnips are crisp and abundant; choose firm, deeply colored bunches and refrigerate them promptly. Sweet potatoes and winter squash from the fall harvest store well in a cool, dry spot, and the late pecan crop is still around for the holidays — keep them refrigerated or frozen.
December market shopping is built around the holiday table and the Valley citrus; buy the grapefruit by the bag, since it holds for weeks and only gets sweeter as the season deepens.
Night Sky This Month
December delivers the longest nights of the year — the winter solstice falls around December 21 — and the best meteor shower of all, the Geminids, which peak around the night of December 13–14. The Geminids are the year's richest and most reliable shower, producing well over a hundred bright, slow meteors an hour from a dark site, and because the radiant in Gemini rises early, you can watch all evening rather than waiting for the small hours.
The brilliant winter sky now owns the night. Orion the Hunter strides up the southeast with the red giant Betelgeuse and the blue-white Rigel, his belt pointing down to Sirius, the brightest star in the sky. Around them wheel the bright stars of the Winter Hexagon and the lovely Pleiades cluster — the richest, most dazzling region of the entire year's sky.
The Big Bend region and the Davis Mountains around McDonald Observatory offer the darkest, clearest December skies in the state. Moon phase and planet positions change each year and matter most for the Geminids; the printable Texas night-sky guide lists this year's exact peak nights and planet visibility from your latitude.
Butterflies & Pollinators
December is the quiet bottom of the butterfly year in Texas. Across most of the state the first hard freezes have ended the season, and the resident species overwinter out of sight — as eggs, chrysalises, or hibernating adults tucked into leaf litter, bark crevices, and brush piles waiting for spring.
The exception, as always, is the deep south. In the frost-free Rio Grande Valley, butterflies remain on the wing all winter, and December is prime time for the subtropical species that draw butterfly watchers from across the country to the National Butterfly Center near Mission and Santa Ana NWR — queens, a wealth of sulphurs, and rarities that stray north from Mexico can all be found on a mild afternoon.
To help them: the best thing you can do now is leave the garden a little messy — standing seed heads, fallen leaves, and uncut perennial stems shelter the overwintering life that will become next spring's butterflies. Hold off on the big cleanup until things warm in late winter, and start planning the milkweed and nectar plantings that will welcome the monarchs back in March.
Trees This Month
By December the deciduous trees of Texas are mostly bare. The bald cypress along the rivers has dropped the last of its rusty needles, the pecans and cedar elms stand leafless after their fall yellow, and the Spanish oaks and bigtooth maples of the Hill Country have let go of their color. A late, mild fall can leave a few stubborn leaves clinging into the month.
What carries the winter landscape is the evergreens. Live oaks hold their deep green leaves all winter, dropping and replacing them only in late winter, and the Ashe junipers (cedars) keep the Hill Country dark green — and will release their heavy pollen in the depths of winter. The red berries of yaupon holly and possumhaw stand out against the bare branches, feeding the winter birds and giving the dormant woods their main spot of color.
Go deeper with the Texas guides
The complete Texas birding, native-plant, wildflower, and night-sky guides — or the whole year in one bundle.
Same month elsewhere: December in Utah · December in Vermont · December in Virginia