Kaki and Persimon: understanding Valencia's autumn fruit

Orange kaki fruit can remain on nearly bare trees after the leaves colour and fall, making a Valencian orchard striking in late autumn. The species is Diospyros kaki. In everyday English it is called kaki or persimmon, while Persimon is a protected commercial presentation associated with firm fruit from the Ribera del Xúquer designation.

Astringency explains the different textures

Some kaki cultivars contain soluble tannins which make firm fruit unpleasantly astringent. Traditionally these fruit are eaten when fully soft. Controlled post-harvest treatment can remove the perception of astringency while the flesh remains firm. That process does not turn the fruit into a different species.

Other cultivars are non-astringent and can be eaten firm from the tree. A label naming the cultivar and production mark is more useful than judging by colour alone.

Growing conditions

Kaki is deciduous and benefits from sun, shelter and well-drained soil. Young trees need regular water while establishing, but roots should not sit in saturated ground. Late frost can damage new growth. Fruit loads may require thinning or branch support so that a productive year does not split the framework.

Harvest and storage

Clip fruit with its leafy calyx attached and handle it carefully. Firm fruit still bruises. Soft astringent cultivars may become almost jelly-like when ready, so they need support and prompt use. Do not apply a domestic gas or alcohol treatment from an unsourced recipe without understanding food safety and ventilation.

Buying the regional product

The protected designation Kaki Ribera del Xúquer has its own production area and specification. "Persimon" on its own should not be used as a loose botanical synonym for all hard kaki. Look for the official mark if provenance matters.

Sources and review

This guide was reviewed in August 2026 using the Kaki Ribera del Xúquer regulatory council, the EU geographical-indications register and the Kew Plants of the World Online taxonomic record.