When and How to Repot a Houseplant
The signs it's time, and a step-by-step process.
Plants don't need repotting on a strict schedule — most tolerate the same pot for 1–3 years. What matters is whether the roots have outgrown the space. Here's how to tell, and how to do it without shocking the plant.
Signs It's Time
Roots visible through the drainage holes or circling at the soil surface — the clearest sign the pot is too small.
If water drains out almost instantly instead of soaking in, roots have replaced most of the soil.
No new leaves for a full growing season, or new leaves noticeably smaller than older ones, often means roots are cramped.
A plant that's outgrown its pot and keeps tipping over is a mechanical sign it needs a wider, heavier base.
Step-by-Step
Water the day before
Moist soil holds together and slides out of the pot more easily than bone-dry soil.
Ease the plant out
Tip the pot sideways, squeeze the sides if plastic, and gently pull at the base of the stem — don't yank by the leaves.
Loosen the roots
Gently tease apart circling roots at the outer edge and bottom so they'll grow outward into the new soil, not keep circling.
Add fresh soil to the new pot
A layer at the bottom, sized so the plant sits at the same depth it was before — don't bury the stem deeper.
Fill in and firm gently
Backfill around the root ball, pressing lightly to remove big air pockets, leaving 1–2 cm below the rim for watering.
Water thoroughly, skip fertiliser
Water well to settle the soil. Hold off on fertiliser for 4–6 weeks — the roots need to recover first.
Repotting FAQs
How do I know my plant needs repotting?
Look for roots growing out of the drainage holes, roots circling visibly at the surface, water running straight through without being absorbed, the plant drying out much faster than before, or no new growth despite a full growing season.
How much bigger should the new pot be?
Go up 2–5 cm in diameter, not double the size. A pot that's too much bigger holds excess wet soil the roots can't reach, which raises the risk of root rot.
When is the best time of year to repot?
Spring or early summer, at the start of the active growing season — the plant recovers from root disturbance fastest when it's already putting out new growth.
Should I repot a plant right after buying it from the store?
Not immediately — let it acclimate to your home for 1–2 weeks first. If it's clearly rootbound in its nursery pot, then repot once it's settled, ideally during the growing season.
Do I need to remove all the old soil when repotting?
No, gently loosen the outer roots and shake off loose excess soil, but you don't need to bare-root it unless you're treating root rot — disturbing the whole root ball unnecessarily adds stress.
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Log every repot in your diary
Keep a timeline of pot sizes and growth spurts — see exactly what worked.
