Propagating Bucephalandra 'Theia Green' by Rhizome Division

A beginner-friendly guide to propagating the bright, broad-leaved Bucephalandra 'Theia Green' through rhizome division on wood or rock in low-tech tanks.

Overview

Bucephalandra 'Theia Green' is a bright, broad-leaved cultivar of the genus Bucephalandra, an aroid (family Araceae) endemic to Borneo. In nature these rheophytic herbs grow as dense mats over rocks in flowing streams and rivers. This selection has a pronounced silver-green sheen and performs well in low-tech conditions, making it a good beginner Bucephalandra.

It is a slow-growing rhizome epiphyte that is attached to hardscape, not planted in substrate, and it is propagated by dividing the rhizome rather than from cuttings.

Propagation Method (Rhizome Division)

Growth runs along a creeping rhizome that carries leaves on top and roots beneath. To propagate, split the rhizome into sections that each keep leaves and roots, so every section grows independently. Healthy rhizome pieces will push new leaves once stuck to a rock or wood surface.

• Each division keeps at least two or three leaves and some roots.
• Divisions go onto hardscape and are never buried.
• Growth is slow; new leaves appear over weeks.

Step-by-Step

1. Remove the parent plant and rinse the rhizome to reveal leaf nodes and roots.
2. Cut the rhizome into sections with clean sharp scissors, leaving leaves and roots on each.
3. Tie each section to wood or rock with cotton thread or fishing line, or fix it with a dab of cyanoacrylate glue gel.
4. Rest the rhizome on top of the surface so leaves and roots stay exposed.
5. Place the hardscape in a mature, cycled tank under low to moderate light and let the divisions re-root undisturbed.

Conditions for Healthy Growth

Theia Green thrives low-tech: it needs no CO2 and grows under low light, though it also tolerates full light. Keeping light subdued, below roughly 50 umol PAR, makes it easy to manage, and cooler water within range reduces stress.

• Temperature: 22-28 C (cooler water reduces melt).
• pH: 6.0-7.5, GH 3-12.
• Light: low; CO2 not required.
• Mounting: tied or glued to wood or rock, rhizome exposed.

Maintenance

Leave the mount undisturbed until roots grip the hardscape, then any thread can be removed. Keep water stable; as a low-tech plant Theia Green is forgiving once established and slowly forms a broad-leaved mat that can be re-divided for new plants.

Common Challenges

Even this hardy selection is susceptible to melting in new, under-cycled tanks because Bucephalandra is sensitive to ammonia. Use an established tank, keep the water cooler within range, and be patient with this slow grower.