Prunus simonii is a small deciduous tree. The green, simple leaves are alternate. They are obviating, crenate and etiolate. It is growing to about 5 – 8.5 meters (18 - 30 ft) in height. It produces cluster of white five-satellite flowers in Spring. The flowers produce almost no pollen; the fruit varies in quality, can be bitter or pleasant to eat, and is flat in shape. Just like an apricot, the fruit flesh clings tightly to the pit. The taste is often bitter. Fruit production is not particularly bountiful. The fruit is dark red or "brick red". The branches are slender and the leaves oblong. In appearance, the fruit is flatter than most plums, looking "tomato-like". The fruit is especially aromatic, much more so than Prunus salicina, with a relatively high level of hexyl acetate, which gives apples their aroma. The drupe fruits ripe in summer.