Begonia 'Gryphon' (Pegasus Begonia) care

Light

Begonia 'Gryphon' 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. Performs best in bright indirect light, which keeps the silver markings strong and growth upright. It tolerates lower light better than most begonias but becomes leggy. Some gentle morning sun is fine; avoid harsh afternoon sun that scorches the foliage. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water begonia 'gryphon' when the top 2-3 cm of soil is dry, roughly every 5-9 days. 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 evenly moist during active growth but allow the surface to dry slightly between waterings; it is more drought-tolerant than Rex begonias but resents both waterlogging and prolonged dryness. Water at soil level and cut back in winter.

Soil and pot

Begonia 'Gryphon' grows best in rich, well-draining potting mix. Use a quality houseplant mix lightened with perlite for drainage and bark or coir for structure. This robust grower appreciates fertile soil but needs good drainage to prevent root rot. A sturdy pot supports its larger, top-heavy form. 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 'Gryphon' sits happiest at around 40-60% humidity and 16-27°C (60-80°F). More tolerant of average humidity than Rex begonias, it does well at 40-60%. Higher humidity supports lush growth but is not essential. Maintain good airflow to discourage powdery mildew on the broad leaves; avoid wetting the foliage. If you keep the room above 16 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 'gryphon' sparingly. Feed every 2-3 weeks in spring and summer with a balanced houseplant fertiliser at half to full strength; this vigorous grower is a moderate feeder. Reduce feeding in autumn and stop in winter when growth slows. 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 'gryphon' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Leggy, stretched growth — Too little light causes long internodes and floppy stems. Move to brighter indirect light and pinch growing tips to encourage a bushier, sturdier shape.
• Powdery mildew — Begonias are prone to it in still, humid air. Improve ventilation, avoid wetting the leaves, space plants apart, and remove infected foliage.
• Root rot from overwatering — Soggy soil rots the roots of even this tougher hybrid. Use a free-draining mix, let the surface dry between waterings, and ensure the pot drains freely.
• Top-heavy toppling — Its large leaves make mature plants top-heavy. Use a wide, weighted pot and stake or pot up as it grows to keep it stable.

Propagation

Propagate from stem-tip or stem cuttings rooted in water or moist mix, or by division of an established clump. Keep cuttings warm and humid in bright indirect light; roots form in a few weeks. 'Gryphon' is a sterile hybrid, so it is grown from cuttings rather than seed. 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 'Gryphon' is toxic to pets. ASPCA-listed as toxic to cats, dogs, and horses (Begonia genus). The toxic principle is soluble calcium oxalates, most concentrated in the tubers/rootstock; ingestion causes oral irritation and burning, drooling, vomiting, and trouble swallowing. Keep this plant 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 'Gryphon' deep-dive guides

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

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

Featured in these plant shortlists

Begonia 'Gryphon' qualifies for 4 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.
• 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 'Gryphon' is also commonly called Pegasus Begonia.

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