Repotting guide

When & how to repot Monstera (Monstera deliciosa)

Also called Swiss cheese plant, Mexican breadfruit, split-leaf philodendron.

About Monstera

Monstera deliciosa · also called Swiss cheese plant, Mexican breadfruit · tropical

Monstera is a climbing tropical aroid from Central American rainforests. Indoors it wants bright indirect light, chunky aroid mix, and a moss pole to develop its famous fenestrated leaves. Water when the top 2-3 cm of soil is dry. It is mildly toxic to cats and dogs because of insoluble calcium oxalates.

Monstera deliciosa is native to the tropical rainforests of southern Mexico through Central America to Panama, where it grows as a hemiepiphyte: it germinates on the floor then climbs tree trunks with aerial roots toward the canopy light.

RHS recommends a peat-free, loam-based potting compost; as a forest-floor climber it wants a chunky, free-draining mix rather than dense soil so its thick roots get air.

Mature size: Indoors 2-3 m up a moss pole; 20 m+ in habitat

Watch for — Yellow leaves: Almost always overwatering or root rot.

Sources: rhs.org.uk, missouribotanicalgarden.org, digitalcommons.usf.edu

How to tell monstera needs repotting

Repotting on a calendar is less reliable than reading the plant. For monstera, watch for these signs:

Thick roots out of the drainage holes, or circling the surface and lifting the plant.
The pot dries out unusually fast and monstera wilts between waterings it used to shrug off.
The plant is visibly top-heavy and tips over easily.
Stalled growth and small new leaves over a full season — though with a big specimen, top-dressing is often the better first response before a full repot.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot monstera

Every 2–3 years; top-dress in the in-between years. Monstera's growth habit — climbing evergreen vine — will trail or climb a support — sets the pace. Monstera is a climbing tropical aroid from Central American rainforests. Indoors it wants bright indirect light, chunky aroid mix, and a moss pole to develop its famous fenestrated leaves. Water when the top 2-3 cm of soil is dry. It is mildly toxic to cats and dogs because of insoluble calcium oxalates.

What size pot to step monstera up to

Move up exactly one pot size. A heavy monstera dropped into a vastly bigger pot sits in a reservoir of wet soil its roots cannot reach, which rots them and destabilises the plant. In the years between repots, lift off and replace the top 3–5 cm of soil (top-dressing) instead — it refreshes nutrients without the shock of a full repot.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot monstera

Early spring, just as new growth restarts, is the ideal window for monstera. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting monstera

Consider top-dressing first. If monstera is not badly root-bound, scrape off and replace the top 3–5 cm of soil instead — far less shock for a big plant that hates moving.
Get help and one size up. For a full repot, choose a pot just one size larger. A heavy plant needs two people and a stable, free-draining pot.
Ease it out on its side. Lay the plant down, slide the pot off, and gently loosen the outer roots. Do not bare-root a mature specimen.
Repot at the same depth. Add fresh chunky aroid mix beneath and around the rootball, keeping the original soil line. Firm it so the trunk is stable and upright.
Water and leave it put. Water thoroughly, then leave monstera in the same spot and light — moving and repotting at once is what makes it drop leaves.

Aftercare

Leave monstera in exactly the same spot and light it was in before — moving and repotting at the same time is what makes a big specimen drop leaves. Water it in well, then let the top of the soil dry before watering again so the larger volume of fresh soil does not stay sodden. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for monstera

Monstera wants chunky aroid mix. Mix two parts standard potting compost with one part orchid bark, one part perlite, and a handful of horticultural charcoal. Aroid roots need air pockets as much as they need water. A 5-litre pot with at least one drainage hole is plenty for a young plant. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting monstera — frequently asked questions

How often should you repot monstera?

Every 2–3 years; top-dress in the in-between years for monstera. Fully repot monstera only every 2–3 years; in the in-between years just top-dress the top 3–5 cm of soil. Step up one pot size in spring with chunky aroid mix. It is heavy and hates being moved, and a vastly oversized pot holds water against the roots and rots them.

What size pot does monstera need?

When is the best time of year to repot monstera?

Should you top-dress or fully repot monstera?

For a big, heavy monstera, top-dressing — replacing the top 3–5 cm of soil — is the gentler option most years, with a full repot only every 2–3 years. A mature specimen sulks and drops leaves when fully repotted, so do it as rarely as the roots allow.

Should you fertilise monstera after repotting?

Not immediately. Wait about 4 weeks after repotting monstera. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.