Begonia rex — King begonia (Painted-leaf begonia)
⚠️ Toxic to pets

Plants

King begonia (Painted-leaf begonia) care: light, water & problems

Scientific name: Begonia rex · Common name: King begonia (Painted-leaf begonia)

Begonia rex care: medium filtered light, moderate bottom watering and sheltered humidity away from heaters. Botanical sources.

Editorial revision:

Care at a glance

Light

Medium to bright filtered light. Avoid direct scorching sunlight while ensuring enough brightness to keep colors vibrant.

Watering

Water moderately when the top inch of soil dries; apply water directly to soil and never allow the shallow rhizome to sit soggy.

Conditions vary with pot, season and location. Always check the mix and your plant's response.

How to identify it

Rhizomatous foliage begonia famed for showy, textured, spiraling leaves patterned with metallic silver, rich burgundy, emerald and plum.

Environment and placement

Moderate warmth (16-22 °C / 60-72 °F) with stable humidity. Protect from dry radiator drafts in winter.

✨ Tap the plant and watch it respond
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Potting mix and feeding

Use a draining mix that retains some moisture, matched to pot size and the drying rate in your home.

During active growth, follow a suitable feed label. First check light, water and roots if the plant is declining.

Problems to check

Crisp brown leaf margins in dry air; stem and rhizome rot from waterlogging; mealybugs hiding at the base of hairy leaf stalks.

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Specialized diagnostic guide

How to assess brown tips and edges

Read full guide →

Cats and dogs

ASPCA lists this species as toxic to cats and dogs. Keep pets from chewing it; contact a veterinarian if ingestion is suspected.

ASPCA

Common question

How can I prevent my Begonia rex from fading?

Provide bright indirect light, gentle humidity, and feed with a diluted balanced fertilizer during active spring growth.

Botanical source

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