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INDOORPLANTCARE
Repotting · Calathea

How to Repot a Calathea

Every 1–2 years. Best time: Late spring. New pot size: 1–2 inches larger.

Frequency
Every 1–2 years
Best season
Late spring
Pot size
1–2 inches larger
Soil mix
African violet mix or standard potting mix with 20% perlite. Calatheas need slightly acidic, water-retentive soil.

Signs your Calathea needs repotting

Roots showing at the soil surface; new leaves emerging smaller; existing leaves crisping at the edges (often humidity-related, but worth a repot check); soil acidic and depleted.

Step-by-step

  1. 1
    Water thoroughly 24 hours before.
  2. 2
    Slide out the rootball. Calathea roots are fine and easily disturbed — be gentle.
  3. 3
    This is also the best time to divide a calathea: find natural clumps and gently separate by hand.
  4. 4
    Plant at the same depth in fresh mix.
  5. 5
    Water with FILTERED OR DISTILLED water — calatheas are sensitive to tap water minerals, especially after repotting.
  6. 6
    Place in a high-humidity spot (60%+) for the first 2 weeks while recovering.

What kills Calathea after repotting

  • Watering with tap water immediately after repotting — causes leaf browning
  • Letting humidity drop below 50% during recovery — leaves crisp fast
  • Using regular potting mix without amending — too dense for calathea roots

Botanical reference: NC State Extension — Calathea

For full Calathea care, see the Calathea care guide. For the basics that apply to any plant, see how to repot a plant (general).