A field-to-nursery notebook: foraging native seeds & cuttings across North Carolina, identifying them, and working out how to grow them for a NC Piedmont native-plant nursery.
Carya tomentosa · Juglandaceae
The Piedmont's most abundant hickory — big tan buds, fuzzy leaves, thick-husked sweet nuts; your genus-level key to telling it from pignut, shagbark, and bitternut.
Community photos of Carya tomentosa — fix this search image in your eye before the hike (leaf, flower/bract, ripe fruit, bark, whole-plant habit).
Native and common in every NC county; the single most abundant hickory across the Piedmont uplands
Best bet: Husk the nuts, run a float test, then cold-moist stratify cleaned nuts 90–120 days at 33–40°F in barely-moist 1:1 sand:peat in a vented bag; sow spring. Simpler and higher-odds: FALL-SOW outdoors immediately into deep tree pots / root-trainers or straight in place, 3/4–1.5 in deep, capped with 1/4-in hardware cloth against rodents — nature's stratification, germinates the first spring
Piedmont-native upland tree — thrives in heavy clay, drought-tolerant once established, zone 7b/8a is dead center of its range. Two real cautions: (1) the deep taproot forms fast and makes bare-root transplanting nearly impossible, so grow in tall root-pruning containers or direct-sow to final position; (2) it is slow-growing and eventually large (50–80 ft), so site it with room. No serious pest/disease or invasiveness concerns.
Hickories are the second signature of a Piedmont oak-hickory ridge (oaks are the first). Your search image in late September–October is a tall, straight-trunked tree with hard 4-ribbed husks littering the trail beneath it; the canopy turns clear golden-yellow as fall peaks in October. Walk dry-to-mesic upland slopes and old-field woods — hickories dislike wet bottoms. If you can reach a low branch, the fastest single tell is the bud: mockernut's is a plump tan thumb (~0.5–1 cm), bitternut's is neon sulfur-yellow, and pignut's is small and tight.
Worth eating: shagbark (best), mockernut (sweet, thick-shelled). Skip: bitternut (bitter) and most pignut (astringent/variable) — collect those only if you want the trees, not the food.
Collect the day nuts drop (late Sep–Oct), before squirrels and hickory nut weevils clear the ground. Husk them and run a float test — sound viable nuts sink; floaters are weevil-hollowed or immature and go in the compost. This is your phenology gotcha: green husks still on the tree in early September are often immature and low-viability, so wait for browning/splitting husks or fresh drop.
Grow-out: hickories send down a deep taproot immediately, so they resent bare-root transplanting. Two routes: (1) cold-moist stratify cleaned nuts 90–120 days at 33–40°F in barely-moist sand:peat, then sow in spring; or (2) simpler and higher-odds — fall-sow immediately 3/4–1.5 in deep into tall root-trainers or straight into the final spot, capped with ¼-in hardware cloth against rodents (nature does the stratifying). Expect germination the first spring, slow early growth, and a nursery-worthy sapling in a couple of seasons. Site the eventual 50–80 ft tree with room to spread.
Around Roxboro / Person County, work the upland ridges at Mayo Lake and Hyco Lake game lands. Farther south, Duke Forest, Eno River State Park, and Uwharrie National Forest all hold classic oak-hickory ridgelines where all four species grow side by side — ideal for learning the bud-and-bark contrasts in one walk.