Propagating Bucephalandra Pygmaea 'Bukit Kelam' by Rhizome Division

Guide to propagating the tiny rheophytic Bucephalandra pygmaea 'Bukit Kelam' by rhizome division, mounting on stones, and handling melt and very slow growth.

Overview

Bucephalandra pygmaea belongs to the genus Bucephalandra in the family Araceae, endemic to Borneo, where these rheophytic herbs grow as dense mats over stones in streams and rivers of moist tropical forest. The genus has creeping rhizomatous stems and glossy leaves that range from elliptic to linear. The 'Bukit Kelam' cultivar is a tiny form with narrow lance-shaped leaves and dense, compact growth, ideal for nano scapes attached to small stones. Like all buce, it grows very slowly.

Propagation Method: Rhizome Division

Bucephalandra pygmaea is propagated by dividing the rhizome. Because nutrients are stored primarily in the rhizome, each division must keep a section of healthy rhizome together with its own leaves and roots, allowing it to recover and grow independently after being remounted.

Step-by-Step

1. Choose a healthy, dense clump whose rhizome carries several lance-shaped leaves and visible roots.
2. With clean, sharp scissors cut the rhizome into pieces at natural bends where foliage clusters, ensuring each piece has leaves and roots.
3. Mount each piece on a small stone or driftwood by wedging into a crack, or with sewing thread or super glue gel.
4. Apply only a little adhesive, as excess glue can damage the rhizome.
5. Place divisions in gentle flow under low to medium light and leave them undisturbed to re-establish.

Conditions for Healthy Growth

• Temperature: 22–28 °C, matching this tropical rheophyte.
• Lighting: low to medium; stronger light risks algae because growth is so slow.
• CO2 is not necessary, though it can accelerate growth.
• Gentle, oxygen-rich flow reflects the mountain streams of its Bukit Kelam origin.

Maintenance

Keep the rhizome above the substrate, trim away any melted or decaying leaves to protect water quality, and let the dense mat attach naturally to the stone. Because growth is very slow, leave the plant largely undisturbed.

Common Challenges

• Post-planting melt — maintain a healthy rhizome and wait for regrowth.
• Rhizome rot from burying — keep it exposed at all times.
• Algae on slow leaves under bright light — lower the lighting.