Plant Passport
Rex Begonia
Begonia rex
LightBright
Water7-10d
PetCheck
PP BEGO NIAR EXXX
Issued 2026 · Valid while cared for
Rex Begonia
Bladbegonia
Begonia rex
Also known as Begonia rex-cultorum
“I am painted velvet, and I do not want water sitting on my leaves.”
colorful foliagepatterned foliagehumidity lovingsmall spacetropical
- Light
- Medium light
- Water
- Keep lightly moist
- Pet safety
- Mildly toxic
- This month
- Finish the strongest growth flush with one more light feed. Review support or pruning needs for the rosette shape before tired leaves hide pests Cue: Asymmetrical textured leaves in silver.
August care tip
Finish the strongest growth flush with one more light feed. Review support or pruning needs for the rosette shape before tired leaves hide pests Cue: Asymmetrical textured leaves in silver.
Quick Care Summary
- Light
- Medium light
- Water
- Keep lightly moist
- Placement
- Best in a bright humid shelf with filtered light and good airflow.
- Temperature
- 16–27°C
- Humidity
- high
Free printable Plant Passport card
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Plant Passport
Rex Begonia
LightBright
Water7-10d
Botanical stake card
- Format
- 150 x 25mm
- Best for
- Slim plant stakes and gift pots
Use the card section above when you are ready to download or add a printed card.
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View holders →Detailed Care Guide
Watering Method
Water carefully and keep the mix lightly moist without making it soggy; never leave the pot standing in water.
Soil Mix
Light potting mix with perlite; terrarium types need moisture without stagnant roots.
Repotting
Repot or refresh in spring; short-lived colourful plants can also be restarted from cuttings.
Pruning
Pinch tips regularly for a fuller plant and remove spent flowers or weak stems.
Pot Preference
A pot with drainage; small colourful plants often prefer a snug pot.
Fertilizing
Feed lightly every 3-4 weeks from April to September; fast plants respond to regular weak feeding.
Draft Sensitivity
Keep above 16 C and away from cold draughts.
Sources consulted
- powo.science.kew.org
- www.aspca.org
- www.rhs.org.uk
Room Placement
Window Direction
East or west filtered light; north only for shade-tolerant types.
Best Room
bright humid shelf with filtered light and good airflow
Monthly Care Calendar
Aug (now)
Finish the strongest growth flush with one more light feed. Review support or pruning needs for the rosette shape before tired leaves hide pests Cue: Asymmetrical textured leaves in silver.
Sep
Start reducing fertilizer and stretch watering as nights cool. Move Rex Begonia closer to bright filtered light before autumn light drops Cue: Asymmetrical textured leaves in silver.
Oct
Stop feeding and prepare for heating season. Keep temperature steady and avoid cold drafts Cue: Asymmetrical textured leaves in silver.
Nov
Winter risk check: test soil before watering, inspect asymmetrical textured leaves in silver, and keep the pot draining freely while growth slows Cue: Asymmetrical textured leaves in silver.
Watering Schedule
- Summer
- Every 5 days
- Winter
- Every 10 days
Feel the mix and keep the mix lightly moist without making it soggy.
Common Problems
Propagation
stem cuttings in waterstem cuttings in soileasyspring
Take small cuttings with at least one node during active growth and keep them warm and lightly moist until rooted.
Pests & Diseases
Aphids
Early signs
Clusters on tender new shoots and sticky residue.
Treatment
Rinse off and repeat treatment weekly while pruning weak tips.
Spider mites
Early signs
Fine webbing and pale speckles on dry stressed foliage.
Treatment
Raise humidity where appropriate and treat repeatedly.
Buying Tips
Choose Rex Begonia with compact fresh growth and no grey mildew, sticky residue or collapsing stems.
Frequently Asked Questions
Fun Facts
Rex Begonia is easiest to keep attractive when you renew it before old stems become tired.
Origin & Natural Habitat
Warm, bright habitats where moisture is present but air still moves around soft growth.
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