Plant care
Pandacaqui (Banana Bush) care
Tabernaemontana pandacaqui
Also called Pandacaqui, Banana Bush, Windmill Bush, Banana-Fruited Tabernaemontana.
Watering rhythm
5-7days
Every 5–7 days; allow soil to partially dry between waterings
Light
Bright indirect light (just back from a sunny window)
Soil
Rich, free-draining loam with organic matter
Humidity
60–80%
Temp
18–32°C
Pet safety
Toxic to pets
Mature size
1–4 m tall (3–13 ft) in cultivation
Care at a glance
Light
Pandacaqui is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Grows well in semi-shade to bright indirect light, matching its natural habitat at rainforest margins. Can tolerate morning direct sun but appreciates afternoon shade in hot climates. Deep shade diminishes flowering and fruiting. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.
Watering
Water pandacaqui every 5–7 days; allow soil to partially dry between waterings. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Sensitive to overwatering — allow the top inch of soil to dry before watering again. Good drainage is essential. In the ground in humid subtropical climates, established plants are largely self-sufficient between rain events. Do not let containers sit in standing water.
Soil and pot
Pandacaqui grows best in rich, free-draining loam with organic matter. Prefers fertile, slightly acidic soil (pH 6.0–6.8) rich in organic matter, mimicking rainforest floor conditions. Incorporate compost and coarse perlite into potting mixes to ensure moisture retention without waterlogging. 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
Pandacaqui sits happiest at around 60–80% humidity and 18–32°C (64–90°F). Prefers high humidity consistent with subtropical and tropical rainforest habitats. Indoors, use a humidifier or pebble-water tray. In dry conditions, foliage may crisp at the edges and flower buds abort. If you keep the room above 18–32°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 pandacaqui sparingly. Feed with a general-purpose slow-release granular fertiliser in spring and summer. Supplement with a liquid balanced fertiliser (10-10-10) monthly during active growth. Avoid over-feeding with nitrogen, which reduces flowering. 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 pandacaqui in the Growli community. Each is annotated with the most common cause so you know where to start.
- Root rot from overwatering — The most common cultural problem. Plants wilt despite wet soil. Improve drainage immediately by repotting into a freely-draining mix; trim any black, mushy roots and apply a fungicidal drench (e.g. copper oxychloride).
- Scale insects — Brown, waxy scale colonies on stems and undersides of leaves weaken growth. Scrape off with a soft brush, then treat with horticultural oil spray. Repeat every 2 weeks until clear.
- Leaf edge browning — Caused by low humidity, salt build-up from tap water, or cold draughts. Flush the soil with clean water periodically to leach accumulated salts, and increase ambient humidity.
Propagation
Propagate by semi-hardwood cuttings taken in spring or early summer — 10–12 cm sections from non-flowering shoots. Wipe the cut end to remove latex, dust with rooting hormone, and strike in a moist propagation mix at 25–28°C under high humidity. Roots develop in 4–8 weeks. Seed germinates readily when fresh and sown on a moist, free-draining seed mix in a warm propagation environment. 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
Pandacaqui is toxic to pets. All parts including the attractive orange banana-like fruits are highly toxic if ingested. The milky latex (sap) is also an irritant. As an Apocynaceae member, T. pandacaqui contains cytotoxic alkaloids. Not individually listed by ASPCA, but the genus and family toxicity is well documented — keep away from pets, children, and livestock. Fruit toxicity is particularly high; do not consume. 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.
Pandacaqui care — frequently asked questions
What is the common name for Tabernaemontana pandacaqui?
Tabernaemontana pandacaqui is most commonly called Pandacaqui, but it is also known as Pandacaqui, Banana Bush, Windmill Bush, Banana-Fruited Tabernaemontana. The names refer to the same species, so care instructions for Pandacaqui apply identically to anything sold as Banana Bush.
How much light does pandacaqui need?
Pandacaqui grows best in bright indirect light (just back from a sunny window). Grows well in semi-shade to bright indirect light, matching its natural habitat at rainforest margins. Can tolerate morning direct sun but appreciates afternoon shade in hot climates. Deep shade diminishes flowering and fruiting.
How often should I water pandacaqui?
Water pandacaqui every 5–7 days; allow soil to partially dry between waterings. Sensitive to overwatering — allow the top inch of soil to dry before watering again. Good drainage is essential. In the ground in humid subtropical climates, established plants are largely self-sufficient between rain events. Do not let containers sit in standing water. 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 pandacaqui toxic to cats and dogs?
Pandacaqui is toxic to pets. All parts including the attractive orange banana-like fruits are highly toxic if ingested. The milky latex (sap) is also an irritant. As an Apocynaceae member, T. pandacaqui contains cytotoxic alkaloids. Not individually listed by ASPCA, but the genus and family toxicity is well documented — keep away from pets, children, and livestock. Fruit toxicity is particularly high; do not consume.
What USDA hardiness zone does pandacaqui grow in?
Pandacaqui is rated for USDA zone 10-11 and RHS hardiness H1b. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Pandacaqui deep-dive guides
Every aspect of pandacaqui care, each with its own calibrated guide:
- Pandacaqui watering schedule
- Pandacaqui light requirements
- Best soil mix for pandacaqui
- Pandacaqui fertilizing guide
- When to repot pandacaqui
- How to propagate pandacaqui
- Pandacaqui growth rate & size
- Pandacaqui cold hardiness
- Pandacaqui temperature & humidity
- Is pandacaqui toxic to cats & dogs?
- Is pandacaqui toxic to cats?
- Is pandacaqui toxic to dogs?
Featured in these plant shortlists
Pandacaqui qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:
- Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
- Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
- Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
- Best fragrant houseplants — Indoor plants with scented flowers or aromatic foliage — greenery you can smell, selected from our care library.
- Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Pandacaqui is also known as Pandacaqui, Banana Bush, Windmill Bush, and Banana-Fruited Tabernaemontana.