Growli

Plant care

Golden Apple (Ambarella) care

Spondias cytherea

Also called Golden Apple, Ambarella, June Plum, Wi Apple, Otaheite Apple.

RHS H1aUSDA 10–12Pet-safeIndoor 9–15 m tall (30–50 ft)

Watering rhythm

7-14days

Every 7–14 days; moderate drought tolerance when established

Light

Direct sun (at least 4-6 hours)

Soil

Fertile, well-draining loam; tolerates sandy or clay-loam

Humidity

60–90% RH

Temp

20–35°C

Pet safety

Pet-safe

Mature size

9–15 m tall (30–50 ft)

Care at a glance

Light

Most houseplants will scorch where golden apple thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Requires unobstructed full sun for vigorous growth and fruiting. Planted in open tropical gardens, roadsides, and homesteads across its cultivation range. Shading reduces both growth rate and fruit production significantly. Young plants tolerate brief dappled shade but should be moved to full sun as soon as practical. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for every 7–14 days; moderate drought tolerance when established for golden apple, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Regular, moderate watering is preferred for best fruit quality. Trees are semi-deciduous to deciduous during dry periods and can survive drought, but consistent moisture during the fruiting season improves fruit size and prevents premature drop. Avoid waterlogged conditions at all times.

Soil and pot

Golden Apple grows best in fertile, well-draining loam; tolerates sandy or clay-loam. Adapts to a range of tropical soils but performs best in deep, fertile, well-draining loam with pH 5.5–7.5. Sandy soils are acceptable with added organic matter. Clay soils must have good structure and drainage. Avoid shallow, compacted, or waterlogged soils. 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

Golden Apple sits happiest at around 60–90% RH humidity and 20–35°C (68–95°F). Prefers the warm, humid conditions of its native tropical island environments. Adapted to humid tropical climates; performs less well in prolonged arid conditions. Consistent moderate to high humidity improves fruit skin quality and prevents cracking. If you keep the room above 20–35°C 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 golden apple sparingly. Apply a balanced fertiliser (NPK 10-10-10 or tropical fruit blend) 2–3 times yearly during the growing season. Supplement with organic compost mulch to build soil fertility. Young trees benefit from nitrogen-richer feeding to support fast early growth; mature fruiting trees need more potassium to support fruit development. 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 golden apple in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Fruit fly damageTropical fruit flies (Bactrocera spp., Anastrepha spp.) are the most significant pest, attacking ripening fruit and causing internal rot. Harvest fruit promptly, use protein-bait traps, and consider kaolin clay or fruit bag protection for high-value crops.
  • Anthracnose during wet seasonsColletotrichum-caused anthracnose causes dark lesions on fruit, leaves, and young stems during prolonged wet weather. Prune for airflow, apply copper-based fungicide at early fruit development, and remove infected fruit promptly.
  • Branch brittleness and wind breakageFast growth produces wood that can be prone to splitting under heavy fruit load or in strong winds. Train a strong scaffold structure with formative pruning in the first 2–3 years. Reduce excessive length on heavy horizontal branches.

Propagation

Grown from seed (remove outer flesh, sow the pit fresh for best germination in 4–8 weeks) or from large hardwood cuttings planted directly in moist soil — the preferred traditional method in Pacific island communities. Air-layering is reliable and produces larger, faster-fruiting plants. Grafting is used commercially to propagate selected varieties. 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

Golden Apple is pet-safe. Spondias cytherea is not individually listed by ASPCA. As a member of Anacardiaceae, the genus shares family membership with some toxic plants, but Golden Apple fruit is widely and safely consumed by humans and wildlife with no documented toxicity to companion animals. The fibrous, spiny seed pit poses a mechanical choking and obstruction hazard and should be kept from pets. Fruit flesh is considered non-toxic. 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.

Golden Apple care — frequently asked questions

What is the common name for Spondias cytherea?

Spondias cytherea is most commonly called Golden Apple, but it is also known as Golden Apple, Ambarella, June Plum, Wi Apple, Otaheite Apple. The names refer to the same species, so care instructions for Golden Apple apply identically to anything sold as Ambarella.

How much light does golden apple need?

Golden Apple grows best in direct sun (at least 4-6 hours). Requires unobstructed full sun for vigorous growth and fruiting. Planted in open tropical gardens, roadsides, and homesteads across its cultivation range. Shading reduces both growth rate and fruit production significantly. Young plants tolerate brief dappled shade but should be moved to full sun as soon as practical.

How often should I water golden apple?

Water golden apple every 7–14 days; moderate drought tolerance when established. Regular, moderate watering is preferred for best fruit quality. Trees are semi-deciduous to deciduous during dry periods and can survive drought, but consistent moisture during the fruiting season improves fruit size and prevents premature drop. Avoid waterlogged conditions at all times. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is golden apple toxic to cats and dogs?

Golden Apple is pet-safe. Spondias cytherea is not individually listed by ASPCA. As a member of Anacardiaceae, the genus shares family membership with some toxic plants, but Golden Apple fruit is widely and safely consumed by humans and wildlife with no documented toxicity to companion animals. The fibrous, spiny seed pit poses a mechanical choking and obstruction hazard and should be kept from pets. Fruit flesh is considered non-toxic.

What USDA hardiness zone does golden apple grow in?

Golden Apple is rated for USDA zone 10–12 and RHS hardiness H1a. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Golden Apple deep-dive guides

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

Featured in these plant shortlists

Golden Apple qualifies for 10 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Golden Apple is also known as Golden Apple, Ambarella, June Plum, Wi Apple, and Otaheite Apple.