Date Plum

Diospyros lotus

Physical Characteristics

Diospyros lotus is a deciduous Tree growing to 9 m (29ft) by 6 m (19ft) at a medium rate. See above for USDA hardiness. It is hardy to UK zone 5 and is not frost tender. It is in flower in July, and the seeds ripen from October to November. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required).. The plant is not self-fertile. It is noted for attracting wildlife. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Distribution

E. Asia - China, Japan. Himalayas.

Habitats

Woodland Garden Secondary; Sunny Edge;

Edible Uses

Edible Parts: Fruit Edible Uses: Fruit - raw or cooked[2, 3]. The fruit has an exquisitely rich flavour when it is fully ripe (almost at the point of going bad), but it is very harsh and astringent before then[K]. The fruit may not ripen properly in a cool summer, though if it is frosted it normally develops a very good flavour[K]. The fruit can be dried, when it acquires a date-like flavour[61, 183]. The fruit can also be harvested in the autumn, preferably after a frost, and bletted[183]. (This is a process where the fruit is kept in a cool place and only eaten when it is very soft and almost at the point of going rotten). The fruit of trees in a fairly sunny position at Kew ripens on the tree in most years and produces fertile seed[K]. The fruit contains about 1.9% protein, 0.2% fat, 47.7% carbohydrate, 1% ash[179]. Fruits are about the size of a large cherry, they turn from yellow to blue-black when fully ripe[183]. The fruit is about 20mm in diameter[200].

Medicinal Uses

Febrifuge Sedative The fruit is febrifuge[178, 240]. It is also used to promote secretions[240]. The seed is regarded in China as being sedative[240].

Known Hazards

None known