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Repotting Houseplants: Six Steps from Root Check to Pot Size

Don't immediately move a growing plant into a huge pot. Check root crowding, growing season, drainage and modest pot sizing.

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Wikimedia Commons · B137 / Wikimedia Commons / CC BY-SA 4.0. Root bound palm tree 2.jpg. Original unmodified. · Creative Commons Attribution-ShareAlike 4.0 International ↗

The RHS advises repotting many houseplants in spring when growth resumes. Oversized pots may keep compost wet too long. In a slow-growth season such as November in Korea, it is often better to wait unless a plant urgently needs attention.

Your try-it-at-home checklist

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1. Decide whether repotting is needed. Check for roots filling the container or emerging through drainage holes, and for poor water absorption. Drooping leaves alone do not prove the plant is root-bound.
2. Check the season and species. Many foliage plants settle best when repotted in spring as active growth starts. Avoid upsizing just because it is autumn or winter; an urgent problem such as rot or a broken pot is a separate case.
3. Choose a pot with drainage and an appropriate potting mix. RHS warns against substantially oversized pots. Succulents in particular need a free-draining mix suited to their requirements.
4. Protect the work area and wear gloves. Keep potting mix away from children and pets, and avoid touching your eyes after handling plants that may irritate skin or have toxic sap.
5. If repotting really is needed, ease out the root ball carefully. Gently loosen overcrowded outer roots without force. Place the plant at approximately its previous planting depth and backfill around it.
6. Afterward, adjust watering and light to the species and monitor drainage. Empty water that sits in the saucer rather than leaving roots submerged. Follow separate guidance for orchids, cacti and other specialist plants.

Royal Horticultural SocietyHow to grow houseplants ↗RHS notes repot when roots fill container, timing commonly spring, species-appropriate compost and sensible pot sizing.Royal Horticultural SocietyOverpotting ↗Explains excessive pot sizing can leave potting mix wet and increase root problems, especially when growth slows.Royal Horticultural SocietyHow to repot a plant ↗Step-by-step guide: carefully remove rootball, loosen compacted roots, suitable repot timing, planting depth, small size increase.Wikimedia CommonsFile: Root bound palm tree 2.jpg ↗B137 own photograph of Windmill Palm crowded roots, CC BY-SA 4.0. Original JPEG directly viewed.Wikimedia CommonsCommons:Reusing content outside Wikimedia/technical ↗Official technical guide permits hotlinking but requires file-specific license and creator credits.

Your try-it-at-home checklist

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