I kept telling myself I'd repot the monstera "next spring." Then it was three springs later and the roots were growing out of the drainage holes, wrapping themselves in circles at the bottom of the pot, and the plant was producing leaves that were noticeably smaller than the ones it had grown two years ago. Here's what finally pushed me to do it, how the repot actually went, and the mistakes I made along the way.

Disclosure: I buy what I recommend and test it personally. Amazon links may earn a commission at no extra cost to you — it does not affect picks. See the full affiliate disclosure.

How I knew it was time

I'd been watching the signs accumulate for about a year before I acted on them. The first was roots emerging from the drainage hole at the bottom of the nursery pot — long, pale, spiraling roots pushing out into the cache pot. Root escape from drainage holes is one of the clearest signs of a root-bound plant, and I noted it and did nothing.

The second sign was declining growth rate. In year one, this monstera produced a new leaf roughly every three to four weeks in the growing season. By year three, it was down to one leaf every six to eight weeks, and those leaves were smaller — less surface area, fewer fenestrations. The University of Wisconsin Extension notes that root-bound plants often exhibit slowed growth because the root system has exhausted the available soil volume and can no longer support the same rate of vegetative development.

The third sign was rapid soil drying. Root-bound plants have so much root mass relative to soil volume that water moves through the pot in minutes instead of soaking evenly. I was watering my monstera every four to five days in summer — far more frequently than I expected — because the roots were filling the pot and there was little actual soil left to hold moisture.

I pulled the plant out of its pot to check — which you can do gently without doing any damage, just tip the plant over and ease the root ball out. What I found was a dense, solid mass of white roots with almost no loose soil visible. The roots had formed a tight cylinder that held the shape of the pot. This is what root-bound looks like when it's advanced.

Toxicity note: before you handle monstera, be aware that the plant is listed as toxic to dogs and cats via insoluble calcium oxalates by the ASPCA Swiss Cheese Plant entry. The sap can also irritate human skin; I wear gloves for repotting.

Choosing the new pot: size matters here

This is where I almost made my first mistake. My instinct was to give the monstera as much room as possible — go from the 6-inch nursery pot straight to a 12-inch pot. More space = more room to grow, right?

Wrong. The University of Wisconsin Extension and the Missouri Botanical Garden both recommend sizing up by only one pot size at a time for most houseplants — typically 1 to 2 inches in diameter larger than the current pot. For a plant in a 6-inch pot, that means moving to a 8-inch pot, not a 12-inch pot.

The reason is practical: excess soil volume holds moisture the roots can't access, which creates conditions for root rot. When a plant's root system is surrounded by far more soil than it can colonize, that extra soil stays wet while the roots are fine, and anaerobic conditions develop. Missouri Botanical Garden's repotting guidance specifically notes that a pot "one or two inches larger in diameter" than the current container is the appropriate size jump for most species.

I went from the 6-inch nursery pot to a 10-inch ceramic pot with a single large drainage hole. This was slightly larger than the textbook recommendation but within the reasonable range for a plant that was significantly root-bound. I chose a ceramic pot because it's slightly porous and allows some moisture evaporation through the walls, which helps regulate soil moisture for aroids that are prone to root rot.

The soil mix

I did not use potting mix straight from the bag. Monstera is an aroid — it naturally grows as a hemiepiphyte in tropical forest conditions, with roots that are accustomed to good aeration and fast drainage. Standard potting mix is typically too dense and moisture-retentive for aroids once they're in a pot without constant airflow around the roots.

My mix was approximately:

The Missouri Botanical Garden's monstera care page recommends a "well-draining potting mix" specifically for this species, noting that consistently moist but not waterlogged conditions are the target. The perlite percentage I used is on the high end but appropriate for a plant with dense, established root mass that can handle drier conditions between waterings.

I also added a thin layer of coarse material at the bottom of the pot before putting in the soil — this is sometimes recommended to improve drainage at the root zone. I'll note that this is not a universal recommendation; some sources argue it doesn't help and can create a perched water table effect. I did it anyway out of habit and haven't seen problems.

The actual repot

I did this in early March, which is ideal timing. Missouri Botanical Garden recommends repotting in spring before the growing season begins — the plant is starting to ramp up metabolic activity and will respond to increased root space with accelerated growth. Repotting in winter, when the plant is dormant, gives it less ability to recover from root disturbance.

I watered the plant thoroughly the day before repotting. This hydrates the roots and makes the root ball easier to remove without tearing, and it means the plant goes into its new environment with some moisture in its system before I water again.

Day of repot:

Tipped the plant sideways and eased the root ball out of the nursery pot. It came out as a single dense cylinder. I could see that the outer roots were white and healthy; the roots toward the center of the mass were brown and more compressed. This is normal — the outer roots are the active ones, and the inner core is older tissue.

I used my fingers to gently loosen the outer layer of roots — not aggressively pulling them apart, just separating the tightest root coils from the base of the cylinder. I also shook loose some of the old potting mix from inside the root ball. UW Extension notes that loosening the outer roots before repotting encourages them to spread into the new soil rather than continuing to circle. Root-bound plants that aren't loosened can continue circling indefinitely even with more space available.

I found one section of roots that had started to turn brown-grey and mushy near the bottom of the root mass. I trimmed these away with sterile pruning shears. Mushy, discolored roots are compromised and removing them is better than leaving them in the new environment.

I put about 3 inches of pre-moistened soil mix in the bottom of the new pot, set the root ball in, checked the height (I wanted the base of the stem to sit about an inch below the rim, not lower), and backfilled around the sides with more mix. I pressed gently to firm the soil but did not compact it.

I did not water immediately after repotting. This is my practice — the soil was already pre-moistened, and I didn't want to push too much water into a root system that had just been disturbed. I waited three days before watering, at which point I gave it a thorough soak.

Recovery

The plant looked terrible for two weeks. The leaves it had drooped slightly. One older leaf yellowed and dropped — I later learned this is common with monstera repots; the plant sheds older leaves as it redirects energy to root establishment. I resisted the urge to move it, change the watering schedule, or fertilize.

Week three: the remaining leaves firmed back up. Still no new growth.

Week four: a new leaf emerged at the top. It came in smaller than the previous leaves, which I also learned is normal — first post-repot leaves are often smaller while the root system is still establishing.

Week six: the plant looked better than it had in a year. The new leaf was larger than the previous post-repot leaf. Two more leaves were in progress at the growing tip.

By late May — about ten weeks post-repot — it was producing one new leaf every two to three weeks, back to its year-one growth rate. Those leaves were also significantly larger, with more pronounced fenestrations. The Missouri Botanical Garden guidance on monstera specifically notes that good light and adequate root space are the two primary drivers of large, fenestrated leaf development.

Mistakes I made

I waited three years instead of two. The general guidance I've seen from UW Extension and other sources is to repot most tropical houseplants every one to two years, or sooner when you see signs of root binding. By year three, my plant had been underperforming for at least a year while I kept telling myself it was fine. The recovery would have been faster if I'd caught it earlier.

I didn't pre-moisten the new soil. On my second pass at this I always pre-moisten the potting mix before putting it in the pot. Dry soil around a root ball that's been disturbed is stressful — the roots can't access moisture immediately, and they're already in a recovery state. Moisten the soil first so the root system is immediately in contact with something usable.

I didn't trim the aerial roots. The monstera had several aerial roots — the thick, rope-like roots it sends out toward surfaces to climb. I didn't know whether to trim them or tuck them into the new soil. I ended up just coiling them into the pot, which was fine but not ideal. Aerial roots can be gently guided into the soil where they'll contribute to moisture uptake, or left to trail — don't cut them unless they're dead or damaged.

I fertilized too soon. About four weeks after repotting, I added diluted liquid fertilizer because growth seemed slow. This was premature — Missouri Botanical Garden and UW Extension both recommend holding fertilizer for six to eight weeks after repotting to avoid burning the disturbed roots. I didn't see visible damage but the leaf that dropped at week five might have been related.

FAQ

When should I repot my monstera?

The best time is early spring — March in the Northern hemisphere — before the growing season begins. Per Missouri Botanical Garden guidance, repotting during active growth lets the plant recover quickly and take advantage of the new root space immediately. Signs that it's time: roots emerging from drainage holes, significantly slowed growth compared to prior years, soil drying out unusually fast, or a root ball that holds the shape of the pot when removed. Most monsteras need repotting every one to two years.

How much bigger should the new pot be?

One to two inches larger in diameter than the current pot, per UW Extension and Missouri Botanical Garden repotting guidance. Going larger seems logical — more space, faster growth — but excess soil volume holds moisture the roots can't reach and creates root rot conditions. For a plant in a 6-inch pot, move to an 8-inch pot; for an 8-inch pot, move to a 10-inch pot. The one exception is if the plant is severely root-bound and the root mass is so dense that it needs more space to decompress — in that case, a two-inch jump is reasonable.

Why is my monstera drooping after repotting?

Some drooping for the first week or two after repotting is normal and expected — the root system has been disturbed and can't take up water efficiently yet. Don't interpret drooping as dehydration and overwater; check that the soil is reasonably moist and hold your schedule. If drooping persists beyond two weeks, or if leaves are yellowing in addition to drooping, check whether you may have buried the stem too deep (which can cause stem rot) or whether the root rot you trimmed was more extensive than it appeared. Give the plant a stable environment — consistent light, no drafts — and resist the urge to change conditions while it's trying to establish.

Sources: University of Wisconsin Extension Horticulture, Missouri Botanical Garden — Monstera deliciosa, ASPCA Swiss Cheese Plant