Pinwheel Flower (Crape Jasmine) care

Light

Pinwheel Flower 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. Prefers bright indirect light to partial sun (east or southeast window). Full baking sun can scorch leaves, but too much shade reduces flowering. Outdoors, dappled to half-day direct sun is ideal. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water pinwheel flower once or twice per week during active growth; reduce in winter. 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. Keep soil consistently moist but not waterlogged. Water thoroughly when the top inch of soil dries. Drought-tolerant once established outdoors, but container plants need regular moisture throughout the growing season.

Soil and pot

Pinwheel Flower grows best in fertile, well-draining loam or all-purpose potting mix. Tolerates a range of soil types including slightly acidic to mildly alkaline, but insists on good drainage. Amend heavy clay with perlite or coarse sand. A slightly acidic pH (6.0–7.0) supports best flowering and leaf colour. 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

Pinwheel Flower sits happiest at around 50–70% humidity and 15–30°C (59–86°F). Appreciates moderate to high humidity as befits its tropical origin. Indoors, group plants or use a pebble tray to raise ambient humidity. Low humidity can cause leaf tip browning. If you keep the room above 15–30°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 pinwheel flower sparingly. Feed monthly during spring and summer with a balanced liquid fertiliser (e.g. 10-10-10). Reduce to every 6–8 weeks in autumn; withhold in winter. A bloom-booster (low nitrogen, high phosphorus) in late winter can encourage heavier 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 pinwheel flower in the Growli community. Each is annotated with the most common cause so you know where to start.

• Mealybugs and scale — White cottony masses in leaf axils or on stems indicate mealybugs; brown scabs on bark indicate scale. Treat with neem oil or insecticidal soap spray; systemic imidacloprid for heavy infestations.
• Chlorosis (yellowing leaves) — Often caused by iron or manganese deficiency in alkaline soils. Acidify with a chelated iron drench and maintain soil pH near 6.0–6.5. May also indicate overwatering or waterlogged roots.
• Root rot — Standing water triggers Phytophthora or Pythium root rot. Ensure container drainage holes are clear, use well-draining mix, and avoid saucers that collect water. Affected plants wilt despite moist soil.

Propagation

Semi-hardwood stem cuttings taken in spring or early summer root readily. Take 10–15 cm cuttings, let the cut end callous for 30 minutes to reduce latex flow, then dip in rooting hormone and insert into a moist perlite/peat mix. Keep at 24–28°C with high humidity; roots form in 4–6 weeks. Seed is also possible but slow. 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

Pinwheel Flower is toxic to pets. All parts of Tabernaemontana divaricata contain toxic alkaloids (coronaridine, voacangine, tabersonine) typical of the Apocynaceae family. The milky latex is a skin and eye irritant. Although Tabernaemontana is not individually listed in the ASPCA database, the genus belongs to a toxic Apocynaceae clade — treat as toxic to cats, dogs, and horses and keep away from children. Contact with sap may cause dermatitis. 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.

Pinwheel Flower deep-dive guides

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

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

Featured in these plant shortlists

Pinwheel Flower qualifies for 5 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 drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• 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

Pinwheel Flower is also known as Pinwheel Flower, Crape Jasmine, East Indian Rosebay, and Nero's Crown.

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