Begonia 'Torch' (torch begonia) care

Light

Bright but filtered. Begonia 'Torch' burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Wants bright, filtered light to flower freely and keep the canes compact; an east window or lightly shaded south/west spot is ideal. It takes gentle morning sun, but hot direct afternoon sun scorches the leaves, while low light gives leggy stems and few flowers. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering begonia 'torch': when the top 2-3 cm of soil is dry, roughly every 4-8 days in growth. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Keep the mix evenly but lightly moist during active growth, watering at the soil line and letting the surface dry slightly between waterings. Ease off in winter. As a thirsty cane begonia it dislikes drying out completely, yet waterlogging quickly rots the roots.

Soil and pot

Begonia 'Torch' grows best in rich, free-draining houseplant mix. Use a fertile peat- or coir-based mix with perlite and a little bark for drainage, in a pot deep enough to anchor the tall canes. It wants open, moisture-retentive soil that drains freely so the vigorous roots never sit in water. 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

Begonia 'Torch' sits happiest at around 50-70% humidity and 18-27°C (64-81°F). Prefers moderately high humidity; dry air browns the leaf tips. Raise ambient humidity with a humidifier or pebble tray and keep airflow good, since dense cane begonia foliage is prone to powdery mildew when humid air sits still. If you keep the room above 18 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 begonia 'torch' sparingly. Feed every 2 weeks in spring and summer with a balanced liquid feed at half to full strength, as this vigorous flowering cane is hungry. Reduce or stop in autumn and winter. Steady feeding fuels the tall canes and the repeated flushes of coral blooms. 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 begonia 'torch' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Leggy, bare-stemmed canes — Lower leaves drop and stems flop in poor light. Provide brighter indirect light, stake the canes, and prune hard in spring to encourage bushy new shoots from the base.
• Powdery mildew — White powdery patches on the dense foliage in humid, still air. Improve airflow, water at the soil, keep the leaves dry, and remove affected foliage.
• Few flowers — Sparse blooming usually means too little light or under-feeding. Brighten the position and feed regularly through the growing season.
• Root rot — Soggy soil rots the roots, causing wilting despite wet soil. Use a free-draining mix and pot, and let the surface dry before watering again.

Propagation

Propagate from stem-tip or cane cuttings in spring or summer. Take a cutting with one or two nodes, root it in water or moist, airy mix in warm, humid, bright conditions, and pot up once roots are a few centimetres long. Spring prunings provide plentiful cutting material. 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

Begonia 'Torch' is toxic to pets. The ASPCA lists Begonia (Begonia spp.), which includes this angel-wing hybrid, as toxic to cats, dogs, and horses. The toxic principle is soluble calcium oxalates, most concentrated underground in the roots and rhizome. Ingestion typically causes vomiting and salivation in cats and dogs, and kidney failure in grazing animals. Keep it out of reach of pets. 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.

Begonia 'Torch' deep-dive guides

Every aspect of begonia 'torch' care, each with its own calibrated guide:

• Begonia 'Torch' watering schedule
• Begonia 'Torch' light requirements
• Best soil mix for begonia 'torch'
• Begonia 'Torch' fertilizing guide
• When to repot begonia 'torch'
• How to propagate begonia 'torch'
• Begonia 'Torch' growth rate & size
• Begonia 'Torch' cold hardiness
• Begonia 'Torch' temperature & humidity
• Is begonia 'torch' toxic to cats & dogs?
• Is begonia 'torch' toxic to cats?
• Is begonia 'torch' toxic to dogs?

Featured in these plant shortlists

Begonia 'Torch' 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 trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
• 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 fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Begonia 'Torch' is also commonly called torch begonia or angel wing torch.

• Types of begonia — varieties identified, with care and pet-safety
• Snake plant care — light, water and common problems
• Dracaena care — light, water and common problems
• Peperomia care — light, water and common problems
• All 2464 plant care guides in the Growli library