Varieties
Othonna triplinervia
Origin
Native to the rocky coastal fynbos of South Africa's Western Cape
General Care
Light
Bright, direct to indirect. A south- or west-facing window is ideal. Insufficient light will cause lax, elongated growth and diminish the plant's naturally upright, sculptural habit.
Temperature
18–24°C. Keep above 10°C. Protect from cold drafts and sudden temperature fluctuations.
Humidity
Low. Tolerates dry indoor air well.
Water
Every 2–3 weeks (spring–fall). Water thoroughly and allow substrate to dry fully before watering again. Every 3–4 weeks (winter). Reduce watering significantlyduring the plant's natural dry season dormancy; allow substrate to remain dry for extended periods. Always check moisture level before watering. Aerate mix to improve its condition.
Fertilizer
Every 4 weeks (spring–fall). Use a balanced, diluted liquid fertilizer, according to packaging instructions. Do not fertilize in winter.
Maintenance
Every 1-2 weeks, rotate plant to ensure even growth. Remove spent leaves and any lax or unsightly stems at their base with sterile shears. Inspect for pests periodically.
Potting and Repotting
Soil-based potting mix. Transplant once pot-bound. Every 2–3 years (spring), move plant into a planter 1–2" larger (diameter); or repot in the same planter using fresh substrate after cleaning planter and lightly trimming roots. Top dress annually once maximum convenient planter size is reached.
Special Points/Common Problems:
- Soft or translucent stems and leaves suggest overwatering. This plant is highly susceptible to root rot in poorly draining or consistently moist substrate.
- Amber or bronze foliage tones in dry conditions are normal and expected — a characteristic response to seasonal stress rather than a sign of poor health.
- Produces small, daisy-like yellow flowers under sufficient light and during its natural growing season.
- A rare and poorly documented species; handle with care and avoid drastic changes in environment.
- Propagate from stem cuttings placed on well-draining substrate.