Repotting is done less often than many new growers expect. A plant moved to a larger pot before it needs one sits in a volume of damp soil its roots cannot use, which raises the risk of staying too wet. The first task is deciding whether a plant is actually root-bound.

Fiddle-leaf fig with upright leaves, a species sensitive to repotting shock
The fiddle-leaf fig dislikes disturbance, so repot it only when clearly needed. Photo via Wikimedia Commons (CC).

Signs a plant needs a larger pot

  • Roots emerging from the drainage holes or circling visibly at the surface.
  • Water running straight through because the pot is almost solid root.
  • The plant drying out far faster than it used to and stalling despite good light.
  • A top-heavy plant that tips its pot over.

If none of these apply, refreshing the top inch of soil is usually enough and far less disruptive than a full repot.

Timing in the Canadian year

The practical window is the active growing season — late spring through summer — when a plant can push new roots into fresh soil and recover quickly. Repotting in the depth of a Canadian winter, when growth has paused and light is short, leaves the plant sitting in cool damp soil with little ability to use it.

Sizing the new pot

Move up one size at a time. A pot roughly 2 to 5 cm wider in diameter is enough for most houseplants; jumping several sizes surrounds the roots with soil that stays wet. Make sure the new pot has a drainage hole — decorative covers without drainage should hold a plain nursery pot rather than soil directly.

Skip the gravel layer. A layer of stones at the bottom does not improve drainage; it raises the saturated zone closer to the roots. A pot with a working drainage hole and a suitable mix does the job.

Step by step

  1. Water the plant a day before, so the root ball is moist and holds together.
  2. Ease the plant out by tipping the pot and supporting the base of the stems; avoid pulling on the foliage.
  3. Tease apart the outer roots gently if they are tightly circling, which encourages them to grow outward.
  4. Add fresh mix to the new pot so the plant will sit at the same depth as before.
  5. Centre the plant, fill around it, and firm the soil lightly to remove large air gaps.
  6. Water thoroughly, let it drain, and empty the saucer.

A note on potting mix

A general houseplant mix suits most of the species covered here. The aroids — pothos and monstera — do well with extra coarse material such as bark or perlite added for openness. Snake plants prefer a free-draining, grittier mix. Match the mix to how much moisture each species likes to hold, which connects directly back to the watering guide.

After repotting

Keep the plant in stable, bright indirect light and avoid feeding for a few weeks while it settles. Some species, the fiddle-leaf fig in particular, may drop a leaf or pause after the move; steady conditions help it recover faster than frequent adjustments.

References

Last updated: June 3, 2026.