Propagating Hygrophila sp. '53B' from Cuttings

Hygrophila sp. '53B' is a fast, hardy serrated-leaf hygro cultivar that fills a background almost effortlessly. Propagation is the easiest kind of stem-plant cutting — top the plant and replant — and this guide walks through the method, conditions and trimming that turn two stems into a thicket.

Overview

Hygrophila sp. '53B' is an extremely popular, easy-to-grow stem plant from Thailand with narrow, slightly wavy serrated leaves and very fast growth, making it excellent for quickly filling background space. Like its close relative Hygrophila 'Siamensis', it is densely foliaged, beginner-friendly and roots readily from cuttings, so it can be propagated in large quantities — a couple of stems can become around twenty within months.

Propagation Method (Cuttings)

This hygro is propagated by top cuttings and side shoots, the standard approach for the genus. Because the plant readily produces new roots from cuttings, a topped section planted into the substrate establishes quickly, while the parent stem responds to topping by branching into new side shoots.

Step-by-Step

1. Cut a couple of inches (5–10 cm) from the top of a stem at an internode using clean scissors.
2. Strip the leaves from the lowest node or two to keep them from rotting in the substrate.
3. Plant the top portion straight into the substrate, deep enough to hold it upright.
4. Allow the buried section to root; the plant readily forms new roots from cuttings.
5. Leave the parent stem in place so it branches into side shoots that can be harvested later.

Conditions for Healthy Growth

This is an extremely hardy, beginner-friendly background plant with low light and low CO2 demand, reaching 15–30+ cm within a couple of months in almost any substrate. It is an aggressive feeder, so it grows even faster with ample light, carbon and nutrients, and tolerates a wide range of temperature and water hardness. In open tanks it readily grows above the surface, where it forms different emersed foliage and small flowers.

Trimming & Maintenance

Because growth is fast, pinch out and replant the tops regularly — roughly every week or two — to keep the plant submerged and bushy. It suits the mid and background of larger aquariums; in tanks under about two feet long it quickly becomes too large. Each trim provides ready cuttings for new stems.

Common Challenges

Loss of lower leaves, or leaves turning transparent and melting, usually signals insufficient nutrients or carbon; bare lower stems are common in non-CO2 tanks due to poor carbon access, and very poor light can cause the same. If cuttings shed lower leaves, raise light or carbon and dose the water column.