Loquat (Japanese medlar) care

Light

Aim for at least 4-6 hours of direct sun on the leaves. Grows and fruits best in full sun, with at least 6 hours daily. It tolerates light shade but produces fewer and smaller fruit. Shelter from harsh, cold winds protects the autumn blossom and ripening fruit. If your only bright window faces south, that's perfect for loquat — same window any aroid would fry on.

Watering

Watering loquat: deeply when the top 5 cm of soil dries, roughly weekly in warm growth, less in winter. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Keep young trees evenly moist while establishing. Mature trees are fairly drought-tolerant but need consistent water during flowering and fruit swell for good size. Avoid waterlogging, which causes root problems.

Soil and pot

Loquat grows best in well-drained loam, tolerant of most soil types. Adaptable to sandy, loamy or clay soils with good drainage, pH 5.5-7.5. It prefers fertile, moisture-retentive ground but resents permanently wet feet; improve heavy soils with organic matter. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Loquat sits happiest at around 40-70% humidity and 15-30°C (59-86°F). Comfortable across a wide humidity range outdoors. Very dry air is no problem for the tough, evergreen foliage, though good airflow helps prevent fungal leaf spot in damp, crowded conditions. If you keep the room above 15 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed loquat sparingly. Feed established trees three times a year (late winter, late spring, midsummer) with a balanced fertiliser; citrus or general fruit-tree feeds work well. Avoid excess nitrogen, which promotes leafy growth and increases fireblight susceptibility at the expense of fruit. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on loquat in the Growli community. Each is annotated with the most common cause so you know where to start.

• Fireblight — A bacterial disease causing blackened, scorched-looking shoots and dieback. Prune out infected wood well below the damage, disinfecting tools, and avoid heavy nitrogen feeding that fuels soft, susceptible growth.
• Frost-damaged blossom and fruit — Because loquat flowers and fruits in cold months, hard frost can destroy the crop even where the tree itself survives. Site in a sheltered, sunny spot and protect young fruit during cold snaps.
• Fungal leaf spot — Spots and blotches appear in wet, humid conditions or on crowded trees. Improve airflow, clear fallen leaves, and avoid overhead watering.
• Fruit cracking and pest damage — Irregular watering can split ripening fruit, and birds, fruit flies and codling-type pests target the soft crop. Maintain even moisture and net or bag fruit clusters where pests are heavy.

Propagation

Easily grown from fresh seed, but seedlings are variable and slow to fruit. Named cultivars are grafted or budded onto loquat or quince rootstock for true-to-type, earlier-fruiting trees. Semi-hardwood cuttings and air layering are also possible but less reliable. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Loquat is mildly toxic to pets. Eriobotrya japonica is not clearly listed on the ASPCA Toxic/Non-Toxic Plants database, so treat its status as uncertain and verify with a vet. Importantly, the seeds, leaves and stems contain cyanogenic glycosides (amygdalin) that release cyanide when chewed; the ripe flesh is generally regarded as safe, but pets should be kept from the seeds and foliage. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Loquat deep-dive guides

Every aspect of loquat care, each with its own calibrated guide:

• Loquat watering schedule
• Loquat light requirements
• Best soil mix for loquat
• Loquat fertilizing guide
• When to repot loquat
• How to propagate loquat
• Loquat growth rate & size
• Loquat cold hardiness
• Loquat temperature & humidity
• Is loquat toxic to cats & dogs?
• Is loquat toxic to cats?
• Is loquat toxic to dogs?

Featured in these plant shortlists

Loquat qualifies for 3 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Loquat is also known as Loquat, Japanese medlar, and Japanese plum.

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• All 5561 plant care guides in the Growli library