Fertilising guide

How to fertilise Hachiya Persimmon (Diospyros kaki 'Hachiya')— schedule & NPK

Also called Hachiya persimmon, astringent persimmon.

More about hachiya persimmon

About Hachiya Persimmon

Diospyros kaki 'Hachiya' · also called Hachiya persimmon, astringent persimmon · edible

Hachiya is the classic astringent Asian persimmon — large, acorn-shaped fruit that must ripen to a soft, jelly-like pulp before the mouth-puckering tannins fade and it becomes sweet. A handsome deciduous self-fruitful tree, it wants full sun, deep well-drained soil and a long warm autumn, and is hardy to roughly minus 12 Celsius once established.

Growth habit: Upright deciduous tree with glossy leaves colouring orange-scarlet in autumn. Self-fruitful; one tree fruits alone, though astringent fruit must be eaten fully soft.

Watch for — Fruit drop: Young or over-fertilised trees shed developing fruit. Limit nitrogen, water evenly and accept some natural thinning.

What fertiliser hachiya persimmon actually wants — and why

Hachiya Persimmon feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.

For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for hachiya persimmon: match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.

How often to feed hachiya persimmon, and which months

Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For hachiya persimmon:

Light feeder. Aged compost or a balanced fruit-tree fertiliser in early spring is plenty; over-feeding with nitrogen triggers heavy fruit drop and soft growth. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).

The dormant-season rule matters more than the exact interval: skip feeding entirely when hachiya persimmon is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.

What strength to mix for hachiya persimmon

Follow the crop-feed label rate for hachiya persimmon — these are calibrated for hungry vegetables. Consistency through fruiting matters more than strength; erratic feeding causes problems like blossom-end rot.

Feeding always goes onto already-damp soil, never dry roots — water hachiya persimmon first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the hachiya persimmon watering schedule.

Signs you are over-feeding hachiya persimmon

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for hachiya persimmon:

Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen).
Lush foliage hiding the crop; soft growth prone to pests and disease.
Salt crust on the soil and scorched leaf edges in containers.

Signs you are under-feeding hachiya persimmon

Pale, yellowing lower leaves and stunted growth.
Small fruit, poor set, and a quickly exhausted plant.
Blossom-end rot and weak cropping from erratic or insufficient feeding.

If the symptoms point at watering, light or roots rather than nutrition, the full hachiya persimmon care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

In containers, fertiliser salts build up fast — water hachiya persimmon thoroughly so excess drains from the base each time, and flush pots with plain water every few weeks to prevent a damaging salt build-up.

Organic vs synthetic feeds for hachiya persimmon

Organic options

Garden compost or well-rotted manure dug in before planting, plus a liquid comfrey or seaweed feed once fruiting starts. UK: comfrey feed or organic Tomorite; US: Espoma Tomato-tone or Neptune's Harvest. Builds soil and feeds in one.

Synthetic / liquid feeds

A balanced feed at planting then a high-potash tomato feed in fruiting — UK: Growmore at planting then Tomorite (Levington) or Phostrogen; US: a balanced 10-10-10 then Miracle-Gro Tomato or a bloom booster.

Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.

Fertilising hachiya persimmon — frequently asked questions

What fertiliser does hachiya persimmon need?

Balanced (even N-P-K) at planting for roots and frame, then switch to a high-potassium ("high-potash") tomato-style feed once the first flowers open — potassium is what sizes and ripens fruit, not nitrogen. Hachiya Persimmon feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.

How often should I feed hachiya persimmon?

Light feeder. Aged compost or a balanced fruit-tree fertiliser in early spring is plenty; over-feeding with nitrogen triggers heavy fruit drop and soft growth. Light feeder. Aged compost or a balanced fruit-tree fertiliser in early spring is plenty; over-feeding with nitrogen triggers heavy fruit drop and soft growth. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).

What strength of feed for hachiya persimmon?

What does over-feeding hachiya persimmon look like?

Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen). Lush foliage hiding the crop; soft growth prone to pests and disease. Salt crust on the soil and scorched leaf edges in containers. Staying on a high-nitrogen feed once hachiya persimmon starts flowering is the classic error — you get a huge leafy plant and a disappointing crop. Switch to high-potash the moment flowers appear.

Should I flush the soil of hachiya persimmon?