How to Repot Indoor Plants: Complete Step-by-Step Guide

Repotting scared the hell out of me when I started with plants. I kept thinking I'd kill my plant by doing something wrong. Turns out, repotting is actually really hard to mess up — and the signs that your plant needs to be repotted are super obvious once you know what to look for.

I learned this the hard way with a Monstera I had for 2 years. It was root-bound, droopy, and just not growing. A $15 repot job later and it exploded with new leaves within a month. That plant basically screamed at me for a year and I didn't listen. Don't be like me.

Signs Your Plant Needs Repotting

You definitely need to repot if:

• Roots are growing out of the drainage holes
• Water runs straight through the pot when you water (roots have taken over all the soil)
• Plant is top-heavy and keeps falling over
• Growth has slowed or stopped completely
• Roots are circling the inside of the pot (visible if you tip it out)
• Pot is cracked or deformed from root pressure
• It's been 2+ years since the last repot (general rule)

You do NOT need to repot if:

• It's been less than a year since you bought it
• Roots are just starting to fill the pot (that's healthy)
• Plant is growing fine and looking healthy

Pro tip: The best time to repot is spring and early summer — during active growth. Your plant will recover faster and take advantage of the new space during peak growing season. I usually do all my repotting in April-May before summer hits.

What You'll Need

• New pot (1-2 inches larger in diameter than current pot) with drainage holes
• Fresh potting mix (don't use garden soil!)
• Watering can
• Old towel or tarp (it WILL get dirty)
• Gloves (optional but recommended for messy jobs)
• Scissors or pruning shears (for trimming dead roots)

Step 1: Choose the Right Pot Size

This is where people mess up most. Bigger is NOT better when it comes to pots. A pot too large holds excess moisture, leading to root rot. You want a pot that's only 1-2 inches larger in diameter than the current pot.

Example: If your plant is in a 6-inch pot, go up to an 8-inch pot. Not a 10-inch pot.

Make sure the new pot has drainage holes. No exceptions. Plants need drainage. If you love that decorative pot without holes, use it as a cachepot — put a regular plastic pot inside it.

Step 2: Prepare Your Potting Mix

Use good quality potting mix, not garden soil. Garden soil is too dense for indoor pots and doesn't drain well enough. Regular potting mix is formulated for container drainage.

Different plants have different needs:

• Most tropical plants: Standard potting mix works fine
• Succulents/Cacti: Mix potting soil with perlite or buy cactus mix
• Orchids: Use orchid bark mix, not regular soil
• African Violets: Use specifically formulated African violet mix

I always moisture the potting mix before using it — it should be damp but not soaking wet. Dry potting mix hydrophobic and won't absorb water properly on first watering.

Step 3: Remove the Plant

Water the plant 1-2 days before repotting. Dry soil sticks to roots less than wet soil. Also, a well-hydrated plant handles transplant shock better.

To remove:

1. Turn the pot sideways
2. Hold the plant at the base (where stem meets soil)
3. Gently squeeze or tap the pot to loosen the root ball
4. Slide the plant out — if it sticks, run a knife along the inside edge
5. Don't yank. Be patient.

Step 4: Inspect and Trim the Roots

This is the part that freaked me out initially, but it's necessary:

Gently loosen the outer roots with your fingers. If the plant is extremely root-bound, you might need to make a few vertical cuts in the root ball to encourage new growth outward.

Trim dead or rotting roots — they'll be mushy, brown/black, and might smell. Healthy roots are firm and usually white, tan, or greenish.

Don't remove more than 20-25% of the root mass. You want to keep the majority intact.

Step 5: Add Soil and Position the Plant

Here's my method:

1. Add a layer of fresh potting mix to the bottom of the new pot
2. Check the depth: the top of the root ball should sit about 1 inch below the pot rim
3. Center the plant in the pot
4. Fill in around the sides with potting mix, pressing gently to eliminate air pockets
5. Leave 1 inch of space below the rim for watering

Important: Don't bury the stem. The soil level should match where it was in the old pot. Burying stems leads to rot.

Step 6: Water Thoroughly

Water the plant until you see it drain from the bottom. This does two things:

1. Settles the soil around the roots
2. Hydrates the plant after the stress of repotting

Let it drain completely before putting it back in its spot. Don't let it sit in water.

Post-Repotting Care

Don't fertilize for 4-6 weeks. The roots need time to settle and new soil has nutrients. Adding fertilizer too soon can burn the roots.

Watch for transplant stress. Some wilting, yellowing, or leaf drop in the first week is normal. Your plant is adjusting. If it continues beyond 2 weeks, check your watering — overwatering is the most common post-repotting killer.

Keep it in moderate light for 1-2 weeks. Don't put a freshly repotted plant in harsh direct sun. Give it time to recover in gentler conditions.

Common Repotting Mistakes to Avoid

❌ Repotting when the plant is stressed

Don't repot a plant that's already droopy, pest-infested, or struggling. Fix the underlying problem first, then repot when it's healthy. Repotting adds stress on top of existing stress.

❌ Using pots without drainage

I'm begging you. No drainage = root rot = dead plant. Use a pot with holes, or use a decorative pot as a cover pot only.

❌ Going too big on pot size

Already covered this, but it's worth repeating. Too big = excess moisture = root rot. Stick to 1-2 inches larger.

❌ Using old soil from the original pot

That soil is depleted and might contain pests or disease. Fresh soil every time.

❌ Watering immediately after repotting (overwatering)

Water once after repotting, then let the plant tell you when it needs more. In low light and moderate temperatures, plants need far less water than you'd think.

The One Exception: "Terrarium Time Bomb"

If your plant came in one of those enclosed glass globes or terrariums, repot it immediately when you get it home. Those are basically root rot machines. They trap moisture with no drainage and look pretty for about 3 weeks before the plant starts dying.

I speak from experience. Two of my first plant purchases were terrariums. Both died within 6 weeks. I thought I was a plant killer. Turns out the terrarium was the problem, not me.

How Often Should You Repot?

• Fast growers (Pothos, Philodendron, Monsteras): Every 12-18 months
• Moderate growers (Most common houseplants): Every 18-24 months
• Slow growers (Snake plants, ZZ plants): Every 2-3 years
• Repot when needed, not on a strict schedule — let the plant tell you

The Verdict

Repotting is one of those tasks that sounds scarier than it is. Your plants will thank you with new growth and better health. Just remember:

• Pot size: 1-2 inches larger
• Always drainage holes
• Fresh potting mix
• Don't fertilize for 4-6 weeks
• Watch for transplant stress

Done with the repotting? Check out our guide to potting soil for indoor plants →

FAQ

Can I repot in winter?

Technically yes, but it's not ideal. Plants are in dormancy in winter and recovery is slower. Spring/early summer is best. If your plant is severely root-bound and struggling, repot whenever necessary — don't let it die waiting for spring.

Should I water before or after repotting?

Water 1-2 days BEFORE repotting. The soil should be slightly dry — dry soil releases from the pot easier and causes less root damage during removal.

My plant looks worse after repotting. Is it dying?

Some wilting and stress is normal for 1-2 weeks. If it continues beyond that or leaves turn yellow/brown and drop, check your watering — you're probably overwatering. Fresh soil holds more moisture than root-bound soil, so reduce watering frequency.

Can I put a plant from a nursery pot directly into a decorative pot?

Yes, but the decorative pot must have drainage holes. If it doesn't, use it as a cachepot — keep the plant in its nursery pot and set it inside the decorative one. Lift it out to water, let it drain, then put it back.

What if I don't have a bigger pot available?

If your plant is extremely root-bound and you can't size up, you can trim the roots and repot in the same pot with fresh soil. This buys you another year. Just don't remove more than 20-25% of the root mass.