American plum
Prunus americana, Hardiness : Zone 3b
Other names
Wild plum
Fruit tree, Native plant, Rootstock
Height X Width
5.0m X 3.0m
Yellow to red
Harvest : from end of august to september
Considered hardy
Sun exposure
Full sun
Soil type
Normal, well drained
Edible parts
Good pollinator, needs another plant nearby to bear fruits
For more details, see our articles on pollination
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Description, from Wikipedia

The American plum grows as a large shrub or small tree, reaching up to 15 feet (4.6 m). It is adapted to coarse- and medium-textured soils, but not to fine soils (silt or clay). The shrub is winter-hardy, but has little tolerance for shade, drought, or fire. Its growth is most active in spring and summer; it blooms in midspring. It propagates naturally by seed, expanding as a stand relatively slowly, due to its long time to maturity when grown from seed.

The roots are shallow, widely spread, and send up suckers. The numerous stems per plant become scaly with age. The tree has a broad crown. The branches are thorny. The leaves are alternately arranged, with an oval shape. The leaf length is usually 2–4 in (5.1–10.2 cm) long. The upper surface of the leaf is dark green; the underside is smooth and pale. The small white flowers with five petals occur singly or in clusters in the leaf axils. The globular fruits are about 1 in (2.5 cm) in diameter.