Caladiums are tender tropical perennials grown for their striking foliage. They cannot survive frost, so in temperate regions like the UK, their tubers must be lifted and stored over winter.
1. Wait for Natural Dormancy
- Caladiums naturally die back in autumn as temperatures drop
- Stop watering when leaves yellow and start to die
- Allow the foliage to fade naturally before lifting tubers
Tip: Don’t cut the leaves off too early — they help feed the tuber for next season’s growth
2. Lifting the Tubers
- Carefully dig up the tubers once the plant has gone dormant
- Use a fork or spade to avoid damaging the tuber
- Shake off excess soil but don’t wash them, as wet tubers can rot
3. Drying and Cleaning
- Leave tubers to dry for 1–2 days in a warm, shaded, airy spot
- Trim off any dead roots or stems
- Inspect for soft or rotting spots and discard affected tubers
4. Storage
- Place tubers in a breathable container (box, paper bag, or mesh bag)
- Cover with dry peat, vermiculite, or sawdust to prevent shrivelling
- Store in a cool, dry, frost-free place, ideally 12–16°C
- Check periodically and remove any tubers that soften or rot
5. Replanting in Spring
- In late winter to early spring, bring tubers out of storage
- Start pre-sprouting indoors in warm, moist soil if desired
- Plant in pots or garden beds after all frost danger has passed
Extra Tips
- Avoid storing tubers in the fridge — it’s too cold and damp
- Label different varieties if you have several, as leaves often differ in colour and pattern
- Keep them relatively dry, but don’t let them shrivel completely
Overwintering caladiums properly ensures healthy, vibrant foliage and strong growth for the next summer season.