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Plant care

Begonia 'Corbeille de Feu' (basket of fire begonia) care

Begonia 'Corbeille de Feu'

Also called basket of fire begonia, Corbeille de Feu.

RHS H2USDA 9-11Toxic to petsIndoor Stems trail 30-50 cm

Watering rhythm

3-6days

When the top 2-3 cm of soil is dry, roughly every 3-6 days in summer growth

Light

Bright indirect light (just back from a sunny window)

Soil

Rich, free-draining basket or potting mix

Humidity

40-60%

Temp

13-24°C

Pet safety

Toxic to pets

Mature size

Stems trail 30-50 cm

Care at a glance

Light

Begonia 'Corbeille de Feu' 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. Bright, filtered light or gentle morning sun produces the heaviest flowering. In hot climates give afternoon shade; indoors, an east or sheer-shaded brighter window works. Deep shade reduces bloom, while hot direct sun scorches the soft leaves and flowers. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water begonia 'corbeille de feu' when the top 2-3 cm of soil is dry, roughly every 3-6 days in summer growth. 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 the mix evenly moist through the flowering season, watering thoroughly and draining fully. Baskets dry quickly in heat, so check often. Avoid waterlogging the tuber, and gradually withhold water in autumn to trigger dormancy.

Soil and pot

Begonia 'Corbeille de Feu' grows best in rich, free-draining basket or potting mix. A humus-rich peat-free compost lightened with perlite holds summer moisture while draining freely. Tuberous begonias rot if the tuber sits wet, so good drainage is essential; a quality multipurpose basket mix gives the fertility for heavy bloom. 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 'Corbeille de Feu' sits happiest at around 40-60% humidity and 13-24°C (55-75°F). Average to moderate humidity suits it; good airflow matters more than high moisture for these dense-flowering plants. In stagnant, very humid conditions watch for mildew and botrytis. Keep water off the flowers and leaves where possible. If you keep the room above 13 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 'corbeille de feu' sparingly. Feed every 1-2 weeks from late spring through summer with a high-potassium liquid feed (such as tomato fertiliser) at half to full strength to sustain the heavy flowering. Stop feeding in late summer as the plant prepares for dormancy. 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 'corbeille de feu' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Powdery mildewA common problem for tuberous begonias in still, humid air. Space plants for airflow, avoid wetting foliage, remove affected leaves, and treat with a labelled fungicide.
  • Tuber rotA soft, mushy tuber follows overwatering or wet winter storage. Drain baskets well in summer and store dormant tubers cool, dry, and frost-free over winter.
  • Brittle stem breakageThe succulent stems snap easily in wind or handling. Site baskets in a sheltered spot and handle gently; broken tips can sometimes be rooted as cuttings.
  • Bud drop in heatHeat stress or drying out causes buds to fall. Provide afternoon shade in hot spells and keep the rootball evenly moist during peak flowering.

Propagation

Propagate by dividing dormant tubers (each piece with a growth bud) or from basal/stem-tip cuttings in spring. Start tubers indoors in warmth in late winter, hollow side up, just covered with moist mix, and grow on once shoots and roots appear. 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 'Corbeille de Feu' is toxic to pets. The ASPCA classifies Begonia as toxic to cats, dogs, and horses; the toxic principle is soluble calcium oxalates, most concentrated in the underground tubers, which are large in tuberous types. Ingestion causes oral burning, drooling, and vomiting. Keep tubers and plants away from pets and call a vet if eaten. 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 'Corbeille de Feu' care — frequently asked questions

What is the common name for Begonia 'Corbeille de Feu'?

Begonia 'Corbeille de Feu' is most commonly called Begonia 'Corbeille de Feu', but it is also known as basket of fire begonia, Corbeille de Feu. The names refer to the same species, so care instructions for Begonia 'Corbeille de Feu' apply identically to anything sold as basket of fire begonia.

How much light does begonia 'corbeille de feu' need?

Begonia 'Corbeille de Feu' grows best in bright indirect light (just back from a sunny window). Bright, filtered light or gentle morning sun produces the heaviest flowering. In hot climates give afternoon shade; indoors, an east or sheer-shaded brighter window works. Deep shade reduces bloom, while hot direct sun scorches the soft leaves and flowers.

How often should I water begonia 'corbeille de feu'?

Water begonia 'corbeille de feu' when the top 2-3 cm of soil is dry, roughly every 3-6 days in summer growth. Keep the mix evenly moist through the flowering season, watering thoroughly and draining fully. Baskets dry quickly in heat, so check often. Avoid waterlogging the tuber, and gradually withhold water in autumn to trigger dormancy. 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 begonia 'corbeille de feu' toxic to cats and dogs?

Begonia 'Corbeille de Feu' is toxic to pets. The ASPCA classifies Begonia as toxic to cats, dogs, and horses; the toxic principle is soluble calcium oxalates, most concentrated in the underground tubers, which are large in tuberous types. Ingestion causes oral burning, drooling, and vomiting. Keep tubers and plants away from pets and call a vet if eaten.

What USDA hardiness zone does begonia 'corbeille de feu' grow in?

Begonia 'Corbeille de Feu' is rated for USDA zone 9-11 (lift the tuber where frost occurs) and RHS hardiness H2. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Begonia 'Corbeille de Feu' deep-dive guides

Every aspect of begonia 'corbeille de feu' care, each with its own calibrated guide:

Featured in these plant shortlists

Begonia 'Corbeille de Feu' qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Begonia 'Corbeille de Feu' is also commonly called basket of fire begonia or Corbeille de Feu.