How to Propagate Aroids: Stem Cuttings, Division, and Offsets

Aroids propagate by several distinct methods, and which one applies depends on the growth habit of the species. Climbing and vining aroids such as monstera, philodendron, pothos, and rhaphidophora propagate from stem cuttings. Clumping aroids such as alocasia and peace lily propagate by rhizome division or offset separation. Some aroids, including alocasia, produce small pups or offsets at the base of the main plant that can be separated and potted independently once they have developed their own roots. This guide covers each method in full.

Method 1: Stem Cuttings

Stem cuttings suit all climbing and vining aroids. The process is the same across species, with minor adjustments for stem thickness and the rooting medium used.

Identifying a suitable cutting: Select a healthy stem section with at least one node. In aroids, nodes are the slightly raised or swollen points on the stem from which leaves, aerial roots, and new growth emerge. A cutting with one node and one leaf is the minimum; two nodes improve success rates.

Taking the cutting: Using clean, sharp scissors or pruning shears wiped with rubbing alcohol, cut cleanly just below the lowest node. For thick-stemmed species such as monstera, allow the cut end to dry in open air for fifteen to thirty minutes before placing in water or moss, reducing the risk of rot at the cut surface.

Rooting in water: Place the bare node in a jar of clean water with the leaf or leaves above the waterline. Position in bright indirect light. Change water every five to seven days. Roots appear within two to six weeks depending on species and temperature. Pot up once roots reach two to three centimeters in length.

Rooting in sphagnum moss: Wrap the node section in damp sphagnum moss and place in a sealed clear plastic bag or propagation box in bright indirect light. Check moisture every few days and mist if the moss begins to dry. Roots produced in moss adapt more readily to a growing medium than water-produced roots. This method suits thicker-stemmed species particularly well.

Potting up: Transfer rooted cuttings into a pre-moistened aroid mix as described in the how to make an aroid potting mix guide. Choose a small pot: one only marginally larger than the root system. Water lightly and keep in bright indirect light, avoiding direct sun for the first few weeks.

Method 2: Air Layering

Air layering is used for propagating sections of thick, mature stems that are difficult or impractical to root as conventional cuttings. It is particularly useful for monstera deliciosa when you want to propagate a stem section that is already producing large, fenestrated leaves and you do not want to cut the main plant.

Select a stem section with at least one node and one leaf. Make a small, shallow wound through the outer bark layer at the node, just enough to expose the inner cambium tissue. Pack damp sphagnum moss around the wounded area, covering it completely. Wrap the moss ball in clear plastic wrap and seal the top and bottom with tape or plant ties, leaving the ends slightly open for minimal air exchange. Within four to eight weeks, visible roots will grow through the moss and be visible through the plastic. Once roots are two to three centimeters long and numerous, cut the stem below the moss ball and pot the rooted section into aroid mix.

Method 3: Rhizome Division

Division suits clumping aroids that produce a spreading rhizome with multiple growing points: alocasia, peace lily, and some anthurium species. The best time to divide is spring at repotting time.

Remove the plant from its pot and gently clear loose mix from the root ball. Identify separate rhizome sections with their own growing points and root mass. Using clean hands, tease the sections apart along natural separation lines. Where the rhizome is too densely intertwined to separate by hand, use a clean knife to cut through cleanly. Each divided section should have at least two growing points and a meaningful portion of the root system.

Pot each section into a small container with fresh aroid mix. Keep in bright indirect light and high humidity for the first two to four weeks while the divided root system re-establishes. Expect some wilting in the first few days.

Method 4: Offset Separation

Several aroids produce offsets, also called pups, at the base of the parent plant. Alocasia species in particular produce small, independent plantlets in the pot alongside the parent. These offsets develop their own root systems before they are separated, making them the most straightforward aroid propagation method.

Wait until the offset has produced two to three leaves of its own before separating. At repotting time, remove the parent plant from its pot and locate the offset and its root system. Separate it from the parent with a clean cut if it does not pull away easily. Pot the offset in a small container with fresh aroid mix and treat as a small established plant rather than a cutting: water normally rather than keeping in high humidity, since it already has a functioning root system.

For philodendron-specific propagation detail, the philodendron propagation guide covers the vining philodendron stem cutting method in full.