How to Propagate Tree Philodendron

Thaumatophyllum bipinnatifidum · Also called Split-Leaf Philodendron

This large self-heading philodendron doesn’t vine, so propagation differs from the trailing types. Offsets that form at the base are the easiest method; stem cuttings and air layering work on mature plants with visible stem sections.

Offsets

Separate rooted offsets from the base with a clean cut; pot in well-draining mix.

Air layering

For a tall or leggy specimen — wound the stem, wrap in damp moss and plastic, wait 4–6 weeks.

Stem cutting

Only an option on a mature plant that has developed a visible woody trunk. Cut a section of that trunk containing at least one node — the raised ring where a leaf once attached — and root it in a chunky, well-draining aroid mix, keeping humidity high. This is slower and less reliable than offsets or air layering, so use it only when you have trunk to spare.

When to propagate

Spring through summer.

Common problems

Offset struggled after separation. Ensure it has some roots of its own before cutting it free.

Questions people ask

Is it toxic? Yes, toxic if eaten, sap can irritate skin — same as most aroids on this list.

Related

Soil & cutting methods hub · Similar plants: Elephant Ear, Monstera