Kohekohe (Dysoxylum spectabile)

Kohekohe

Dysoxylum spectabile

Its glossy leaves and fragrant blooms bring subtropical elegance. Evergreen tree; common name: Kohekohe.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Prefers full sun to partial shade; tolerates dappled forest light in its native subtropical habitat.
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Watering Water deeply when the top 5 cm of soil dries out; avoid prolonged waterlogging to prevent root rot.
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Temperature Thrives in 10–22°C; tolerates light frost down to 5°C but may suffer leaf damage below 0°C.
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Characteristics

  • Leaf: Pinnate compound leaves 15–30 cm long; glossy dark green leaflets with smooth, entire margins.
  • Flower: Dense axillary panicles of small, fragrant cream-white flowers with subtle yellow accents.
  • Stem/Bark: Smooth grey-brown bark on young specimens; develops shallow fissures as the tree matures.
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Horticulturist's Insider Field Notes (No AI Fluff)

The Golden 'Finger Test' Rule

Never water on a strict calendar. Stick your index finger 2 inches into the soil. If it feels cool and damp, wait 2–3 days. If bone dry, water thoroughly until it drains from the bottom holes.

Empty the Saucer After 20 Minutes

The #1 houseplant killer is water sitting in the catch tray. Stagnant runoff water starves roots of oxygen and causes root rot.

Turn the Pot Every 2 Weeks

Houseplants naturally lean toward the nearest window light. Give the pot a quarter-turn biweekly to maintain balanced, symmetrical architecture.

Wipe the Dust Away

Dust on leaves acts like a heavy sunshade. Gently wipe broad foliage with a damp cloth monthly to maximize photosynthesis and air purification.

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Care Guide

Watering

Keep soil consistently moist during active growth periods

Fertilization

Apply balanced organic fertilizer once monthly. Avoid over-fertilizing to prevent excessive foliage growth at the expense of flowering.

Composted banana peel tea:Soak fully composted banana peels in water for 3 days; dilute 1:20 with water for root drenching to support flower development.
Pruning
  • Remove dead, damaged, or crossing branches in late winter to maintain structural integrity.
  • Thin crowded inner branches to improve air circulation and light penetration.
  • Avoid heavy pruning, as the tree has a naturally symmetrical, elegant growth form.
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Pet & Human Toxicity & Emergency Guide

⚠️ Toxic to Pets (Cats & Dogs)

Toxicity Warning: Veterinary toxicology registers Kohekohe (Dysoxylum spectabile) as possessing biochemical compounds (such as insoluble oxalates, alkaloids, or saponins) that pose ingestion hazards to felines and canines.

Feline Ingestion Risks (Cats)

Oral pain, hypersalivation (excessive drooling), pawing at mouth, swelling of tongue or lips, vocalization, and vomiting.

Canine Ingestion Risks (Dogs)

Oral mucosal irritation, gagging, retching, lack of appetite, lethargy, diarrhea, and difficulty swallowing.

Immediate Emergency First-Aid

Do NOT induce vomiting without veterinary instructions! Carefully remove remaining plant pieces, gently rinse mouth with cool water, and monitor breathing.

🚨 Pet Ingestion Emergency? Instant Plant & Toxicity Scan

Chewed leaf or stem? Open PlantFun App to scan the plant, immediately verify the botanical species, and view ASPCA toxicity severity ratings & vet first-aid advice.

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Troubleshooting & Common Plant Problems

Quick diagnostic guide for common care issues affecting Kohekohe (Dysoxylum spectabile):

Yellowing Leaves

Most commonly caused by overwatering or poor drainage. Ensure topsoil dries out between waterings and check for root ventilation.

Brown or Crispy Leaf Tips

Low ambient humidity, hard tap water minerals, or direct midday sunburn. Increase humidity and use filtered water.

Drooping or Wilting Foliage

Indicates dehydration or root damage from prolonged waterlogging. Inspect soil moisture and root firmness.

Common Pests (Spider Mites, Aphids)

Dry indoor air encourages pests. Wipe leaves with a damp cloth and treat with insecticidal soap or neem oil.

🌿 Instant AI Plant Health Check

Take a photo of any leaf on PlantFun App to get instant diagnosis of diseases, pests, and custom care recovery steps.

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Propagation & Repotting Guide

  • Taking Cuttings: During active spring or summer growth, take a healthy 4–6 inch cutting just below a node using clean shears.
  • Rooting Medium: Place cuttings in fresh water or moist perlite mix in bright, indirect light; refresh water weekly.
  • Potting Up: Transplant into well-draining potting mix once roots reach 2 inches in length (typically 3–5 weeks).
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Seasonal Care Calendar

  • Spring & Summer (Active Growth): Water thoroughly as topsoil dries; apply diluted balanced fertilizer monthly; encourage steady growth.
  • Autumn (Transition): Gradually reduce watering frequency as daylight hours shorten; discontinue fertilization.
  • Winter (Dormancy): Water sparingly only when soil is mostly dry; protect from cold window drafts; keep in warm room.
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Frequently Asked Questions

How often should I water my Kohekohe?

Water thoroughly when the top 1–2 inches of soil feel dry. In active growth (spring/summer), water every 1–2 weeks; reduce significantly in winter.

Where is the best indoor location for Kohekohe?

Position in bright, filtered indirect light (e.g., near an east or south-facing window with sheer curtains). Avoid harsh direct midday sun.

Is Kohekohe toxic to pets?

No ASPCA-listed toxicity for cats; no reported adverse reactions.

When should I repot my Kohekohe?

Repot every 1–2 years in spring when roots outgrow the drainage holes or the soil depletes nutrients.

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden tree; historically used for durable timber in New Zealand.

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