Why is my fruit puckering my mouth?

You are likely eating an astringent variety before it is fully soft and ripe.

Do I need two trees for fruit?

Most modern cultivars are self-fertile and will produce fruit without a partner.

Plant guide

Japanese Persimmon.

Diospyros kaki

Pronounced dy-oh-SPY-ros KAH-kee

Also known as Japanese persimmon, persimmon

The Japanese persimmon is a beautiful deciduous tree known for its sweet, vibrant orange fruits. It makes a lovely ornamental addition to the landscape while providing a delicious harvest in the fall. You will love how the leaves turn brilliant shades of red and orange before dropping in winter.

At a glance

Care level: Moderate
Plant type: Deciduous fruit tree
Light: Full sun
Indoor light: Direct sun
Water: Every 7 to 14 days
Mature size: 20 to 30 feet
Growth rate: Medium
Hardiness: USDA 7 to 10
Bloom time: Late spring to early summer

Care

Plant your tree in a spot with plenty of sun and well draining soil to keep it happy. Watch for yellowing leaves which can indicate overwatering or poor drainage. Keep an eye out for common pests like mealybugs or scale during the growing season.

Watering: Keep the soil consistently moist but never waterlogged.
Feeding: Apply a balanced fertilizer during the active growing season.
Pruning: Prune in late winter while the tree is dormant to shape and remove dead wood.
Repotting: Young trees can be repotted every few years if kept in containers.
Soil: Loamy, well draining soil
Soil pH: 6.0 to 7.5
Temperature: -15 to 40°C
Humidity: 40 to 70%
Drought tolerance: Moderate
Lifespan: Perennial, typically 30 to 50 years.
Deer and rabbits: Moderate

Signs it needs repotting

Roots circling the bottom of the pot.
Water draining through the pot almost immediately.
Noticeably stunted growth during the active season.

Safety

People: The plant is non-toxic, but consuming large amounts of unripe fruit can lead to the formation of bezoars in the digestive tract.
Children: The fruit is safe for children, but ensure they do not eat unripe fruit to avoid digestive discomfort.
Contact allergens: There are no notable skin irritants associated with this tree.
Airborne allergens: The pollen may cause mild seasonal allergies in sensitive individuals.
Edibility: Unripe persimmons contain high levels of tannins that cause a very astringent, dry sensation in the mouth.

How to identify it

Glossy dark green oval leaves
Bright orange edible fruit
Dark gray bark broken into small square plates on mature trees
Distinctive four lobed calyx on fruit

Height: 3 to 9m
Spread: 3 to 7.5m
Leaves: green, yellow, orange, red, deciduous
Flowers: yellow, white, 1 to 2cm
Fruit: orange, red, Autumn to early winter

Problems to watch for

AnthracnoseCommon
MealybugsCommon
Persimmon PsyllidCommon
Leaf SpotUncommon
Root RotUncommon
Scale InsectsUncommon

By symptom

Plant problems by symptom

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Growing it

Propagation: grafting, seed, cuttings
When to plant: spring, autumn
Overwintering: Apply a thick layer of mulch around the base to protect roots from deep freezes. Young trees may benefit from wrapping the trunk in burlap if extreme cold is expected.
In containers: Dwarf varieties can grow in large containers of at least 40 liters, but they prefer the ground.

Grafting

1. Select a healthy rootstock in late winter.
2. Use a scion from a known productive variety.
3. Perform a whip and tongue graft.
4. Secure the union with grafting tape.
5. Keep the graft union protected until growth begins.

Planting nitrogen fixing ground covers like clover beneath the canopy helps support the tree's growth.

Grows well with

Comfrey · It acts as a dynamic accumulator to bring nutrients to the soil surface.
Daffodil · These bulbs help suppress weeds around the base of the tree.

Similar species

American Persimmon · It is a hardier relative native to North America with smaller fruit.

Science

Family: Ebenaceae
Genus: Diospyros
Order: Ericales
Class: Magnoliopsida
Native range: China, Japan, and Korea.
Conservation: This species is widely cultivated and is not of conservation concern.

It thrives in sunny, well drained locations and is adapted to survive seasonal cold by dropping its leaves.

Value to wildlife: nectar source
Pollinators: bees
Uses: ornamental tree, edible fruit, shade tree

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 8/9
Temperature: 6/9
Moisture: 5/9
Nutrients: 6/9

Taxonomy resolved against GBIF.

Questions people ask

Why is my fruit puckering my mouth?: You are likely eating an astringent variety before it is fully soft and ripe.
Do I need two trees for fruit?: Most modern cultivars are self-fertile and will produce fruit without a partner.

Where the name comes from

The genus name Diospyros comes from Greek meaning divine fruit, while kaki is the Japanese name for the tree.

Good to know

Persimmons are technically berries.
The name Diospyros translates to fruit of the gods.
The fruit is a staple in many Asian cuisines during the winter months.
Some varieties must be bletted or ripened off the tree to lose their astringency.

Keep your japanese persimmon growing

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This guide was generated with AI on September 25, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.