How to repot a plant — the 7-step beginner method

How to repot a plant — the 7-step beginner method

Repotting is one of those tasks that looks intimidating but is genuinely simple once you've done it once. The key principles: don't go too big, don't damage roots unnecessarily, and don't repot a stressed plant. Picking the right vessel matters as much as the method — terracotta, plastic, glazed and fabric all behave differently, which we cover in the types of pots for plants guide. This guide is the universal method that works for ~95% of houseplants.

Know when to repot: Add your plants to Growli — the app tracks how long each plant has been in its pot and suggests repotting season based on growth signals.

When to repot (and when NOT to)

Repot when:

• Roots circle the bottom of the pot (slide the plant out and look)
• Roots grow out of the drainage hole
• Water runs straight through the soil without absorbing
• Plant has been in the same pot for 2-3 years
• Soil has visibly compacted or smells off
• Plant has outgrown its container visually (top-heavy, falling over)

Don't repot when:

• Plant is actively flowering
• Plant is recently purchased or recently moved (let it acclimatise for 2-4 weeks first)
• Plant is sick — diagnose and treat the underlying problem first
• It's autumn or winter (most plants are dormant; repotting stress is harder to recover from)

Best time: Early spring, just as new growth starts. For tropical houseplants in temperate climates, that's March-April in US northern + UK and February-March in US southern.

Pot sizing — don't go too big

The biggest beginner mistake. Go up just 1-2 inches in diameter from the current pot. Larger pots hold too much water for the existing root mass and cause root rot — the leading entry in our common houseplant diseases hub.

Example: a plant in a 4-inch pot goes into a 5- or 6-inch pot, not a 10-inch pot.

For mature plants whose root mass is sized to the pot: same size or only 1 inch up.

Choose the right pot

Three considerations:

1. Drainage hole — non-negotiable. Decorative pots without drainage cause overwatering.
2. Material — terracotta absorbs excess moisture (good for overwaterers); plastic retains more (good for forgetful waterers); glazed ceramic is between.
3. Shape — round and tall for trailing/tall plants; round and wide for surface-rooting plants (succulents).

Soil — match to plant

Standard potting mix works for 80% of houseplants. The exceptions:

• Cacti and succulents — gritty mineral mix (50% perlite/pumice added to standard mix)
• Orchids — bark-based orchid mix, NOT regular potting soil
• Aroids (monstera, pothos, philodendron) — chunky aroid mix: orchid bark + perlite + coco coir + worm castings
• African violets — light peat-based African violet mix
• Ferns — moisture-retentive mix with extra peat or coco coir

Don't reuse old potting mix — it's depleted, may carry pathogens, and is often compacted.

The 7-step method

Step 1 — Water the day before

Water the plant the day before repotting. Moist soil releases from the pot easily and roots are less brittle. Dry soil makes the root ball crumble.

Step 2 — Prepare the new pot

Place a small piece of mesh or a coffee filter over the drainage hole to prevent soil falling out (optional — bigger drainage holes don't need it). Fill the pot 1/4 to 1/3 full with fresh potting mix. No "drainage layer" of pebbles needed — that's a myth that actually impedes drainage.

Step 3 — Remove the plant from the old pot

Squeeze the sides of plastic pots to loosen, or gently tap a terracotta pot's rim. Turn upside down with one hand supporting the soil surface around the stem. Wiggle and pull gently.

If stuck, slide a butter knife around the inside edge of the pot, then try again.

Step 4 — Inspect the roots

A healthy root ball is white or pale tan, with roots filling the soil mass. Three problems to fix:

• Circling roots: Gently loosen the outer roots with your fingers. Severe root-binding may need vertical cuts down the side of the root ball.
• Dead black roots: Cut off with clean scissors.
• Old compacted soil: Loosen and remove some, but don't disturb a healthy root ball more than necessary.

Step 5 — Position the plant

Place the plant in the new pot so the top of the root ball sits 1-2 inches below the pot rim (to leave space for watering). Adjust the soil base depth up or down as needed.

Step 6 — Fill in with fresh mix

Add potting mix around the root ball. Tap the pot gently on the work surface to settle the soil into gaps. Don't pack it tight — you want air pockets for roots to breathe.

Leave the top of the root ball just below the soil line. Don't bury the stem deeper than it was before (except for tomatoes, which actively grow new roots from the stem).

Step 7 — Water lightly

Water lightly to settle the soil. Don't soak — the disturbed roots need a few days to heal before facing wet conditions. Resume normal watering schedule after 5-7 days.

Post-repotting care (first 2 weeks)

• No fertiliser for 4 weeks. Fresh mix has nutrients; feeding now stresses roots.
• No direct sun for 1 week. Move to bright indirect light to reduce transpiration stress.
• Some leaf drop is normal — the plant is acclimatising. Don't panic at 1-3 leaves.
• Check soil moisture daily for the first week — repotted plants can dry out faster initially.

If multiple leaves drop in week 1, the plant is in transplant shock. Keep humidity slightly higher, water lightly, and wait. Recovery usually within 2-3 weeks.

Related articles

• Snake plant care — snake-plant-specific repotting
• Monstera care — aroid mix repotting
• How often to water succulents — the watering and soil basics
• Why are my plant leaves turning yellow? — if repotting stresses your plant
• Indoor plant care guide — broader houseplant context

Reviewed and updated by the Growli editorial team. For questions about anything here, open Growli and ask — or email hello@getgrowli.app.