When to repot, how to choose a pot, and what to do when the roots have other ideas. A calm, step-by-step guide.
Repotting has a reputation for drama: root balls torn apart, soil across the kitchen, a plant that sulks for a month. It does not have to be like that. Most repotting is a gentle, twenty-minute job — and most plants need it far less often than the internet suggests.
When to repot
The signs are consistent: roots emerging from the drainage holes, water running straight through the pot, the plant drying out within a day or two, or a root ball so tight that the pot rings when you tap it. Spring is the best time, when the plant has energy to recover. Do not repot a healthy plant “just because” — most species are content in the same pot for two to three years.
Choose the pot right
Go up one size, not two. A pot two to four centimetres wider than the current one gives roots room without leaving a mass of wet compost they cannot reach. The new pot must have drainage holes. This is not negotiable — a decorative pot without holes is a saucer in disguise.
The method, calmly
Water the plant the day before, so the root ball holds together. Turn the pot on its side, support the plant at the base, and ease it out — tapping the pot, not pulling the stem. If the roots are circling tightly, tease the outer ones loose with your fingers; if they are not, leave them alone. Never break up a healthy root ball for sport.
Put a little fresh compost in the new pot, set the plant so the top of the root ball sits about a centimetre below the rim, and fill around it, firming gently. Water thoroughly and let it drain completely. Keep it out of direct sun for a week while it settles.
Aftercare
Do not feed for six weeks — fresh compost has nutrients enough, and fertilising a recovering root system does more harm than good. Expect a pause in growth; that is normal. Then, one day, a new leaf unfurls, and the whole operation is forgiven.