According to observations of naturalists and beekeepers.
Where are you?
Common serviceberry occurs from the southern tip of Newfoundland south to the northern tip of the Florida Panhandle and west to southern Ontario and Quebec, eastern Kansas, the eastern edge of Nebraska, and southern Mississippi and Alabama.
This plant is present in at least 40 states/provinces in this country.
Common serviceberry is a tall, deciduous shrub or small tree, growing up to 30 feet (9 m) or more. Its trunk is about 16 inches (40 cm) in diameter. The maximum recorded height and diameter for downy serviceberry is 70 feet (21 m) high and 2 feet (0.6 m) d.b.h. Its branches are purplish when young but turn grey at maturity. Leaves are alternate and simple with serrate margins. They are almost twice as long as broad. Flowers are white, and the berrylike pomme fruit is dark red to purple. There are 4 to 10 seeds per fruit.
In the northern part of its range, common serviceberry flowers at the same time its leaves emerge in April and May. Fruits are produced in June and July. In southern parts of its range, common serviceberry flowers in March and produces fruit from June through August.
Brassica napus (aka: Rapeseed)
Allium schoenoprasum (aka: Chives)
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)
Calendula officinalis (aka: Marigold, Calendula, Pot marigold, English marigold)
Agastache foeniculum (aka: Giant hyssop, Blue giant hyssop, Anise hyssop, Fragrant giant hyssop, Lavender giant hyssop)
Borago officinalis (aka: Borage, Starflower, Common borage, Cool-tankard, Tailwort)
Cucumis melo (aka: Cantaloupe, Rockmelon, Sweet melon, Spanspek, Honeydew melon, Honeymelon, Crenshaw, Casaba)
Calluna vulgaris (aka: Heather, Scotch heather, Common heather, Ling, Simply heather)