According to observations of naturalists and beekeepers.
Where are you?
The range of eastern redbud extends from New Jersey and Pennsylvania west to southern Michigan and southeastern Nebraska; south to eastern Texas; and east to central Florida. Its natural range appears to exclude the Gulf and Atlantic Coastal Plains. It is extinct from one locality in extreme southern Ontario.
This plant is present in at least 33 states/provinces in this country.
Eastern redbud is a native, deciduous, small tree or shrub. Mature height ranges from 25 to 50 feet (7.6-15.2 m); the smaller figure is probably closer to average. The crown is flat to rounded. The trunk is usually straight, branching about 5 to 9 feet (1.5-2 m) above the ground. The 0.5-inch- (1.2-cm) thick bark becomes scaly on older stems. The root system of eastern redbud is long and coarse with a relatively small number of fine feeder roots near the surface. The fruit is a flat, thin-walled legume (pod) 1.5 to 3.9 inches (4-10 cm) long and 0.32 to 0.72 inches (8-18 mm) broad, with several hard, shiny seeds.
Eastern redbud flowers appear before the leaves from as early as February in the southeastern United States to May. In the southern part of its range, eastern redbud pods are fully grown by the end of May and ripen by September or October. The pods split open in late autumn to winter, sometimes persisting on the tree through the winter.
Rhus glabra (aka: Smooth sumac, Common sumac, Rocky Mountain sumac, Red sumac, Western sumac, White sumac)
Brassica napus (aka: Rapeseed)
Sinapis arvensis (aka: Charlock mustard, California rape, Charlock, Corn mustard, Canola, Kaber mustard, Rapeseed mustard)
Asclepias tuberosa (aka: Butterflyweed, Butterfly Milkweed, Orange Milkweed, Pleurisy Root, Chigger Flower, Canada root, Fluxroot, Indian paintbrush, Indian posy, Orange root, Orange Swallow-wort, Tuber root, Yellow milkweed, White-root, Windroot, Butterfly love)
Tilia americana (aka: American basswood, Basswood, Linden)
Amorpha fruticosa (aka: Desert false indigo, False indigo-bush, Bastard indigobush, Indigo Bush)
Asclepias syriaca (aka: Сommon milkweed, Butterfly flower, Silkweed, Silky swallow-wort, Virginia silkweed)
Brassica rapa (aka: Field mustard, Common mustard, Wild mustard, Wild turnip, Forage turnip, Wild rutabaga, Birdsrape mustard, Rape mustard)
Echium vulgare (aka: Viper's bugloss, Blueweed, Blue thistle)
Salsola kali (aka: Russian thistle, Tumbleweed, Prickly saltwort)
Cucumis sativus (aka: Cucumber, Cetriolo, Gherkin)
Cucumis melo (aka: Cantaloupe, Rockmelon, Sweet melon, Spanspek, Honeydew melon, Honeymelon, Crenshaw, Casaba)
Citrullus lanatus (aka: Watermelon)
Cephalanthus occidentalis (aka: Common buttonbush, Buttonball, Buttonbush, Button willow, Riverbush, Honey-bells)
Aralia spinosa (aka: Devil's walkingstick, Prickly ash, Hercules club, Angelica tree, Prickly elder, Pick tree, Toothache tree, Shotbush)