Propagating Hygrophila Corymbosa from Cuttings

Hygrophila corymbosa, the temple plant or giant hygro, is a robust stem plant of the acanthus family (Acanthaceae) indigenous to parts of Southeast Asia such as Malaysia, Thailand, Singapore,…

Overview

Hygrophila corymbosa, the temple plant or giant hygro, is a robust stem plant of the acanthus family (Acanthaceae) indigenous to parts of Southeast Asia such as Malaysia, Thailand, Singapore, Indonesia and India, and also found in the USA and Mexico. It is a riparian species that naturally grows as an emergent yet can survive long periods fully submerged, which is why it transitions well into the aquarium.

As a large, fast-growing plant it can be frequently trimmed back, and it is useful for absorbing ammonium and nitrates and helping fight algal growth. That vigour makes it both easy to propagate and a reliable nutrient sponge in a planted tank.

Propagation Method (Cuttings)

Hygrophila corymbosa can be easily propagated by taking cuttings and planting them in the substrate. Because it grows fast and tolerates frequent trimming, topping the stems gives you a steady supply of cuttings while the base regenerates, letting a single plant fill a background quickly.

Step-by-Step

1. Select a healthy stem and cut a top section of roughly 5 to 10 cm.
2. Strip the lowest leaves so a clean length of stem is exposed.
3. Plant the bare stem section directly into the substrate.
4. Leave the remaining base in place to regenerate new shoots.
5. Group several cuttings together for a fuller background stand.

Conditions for Healthy Growth

The plant performs best in well-lit tanks with nutrient-rich substrate and CO2 supplementation, though it is adaptable to a variety of water conditions. As a fast grower it draws heavily on nutrients, so steady fertilisation keeps the broad bright-green leaves dense and healthy. Its tolerance of varied water makes it a forgiving background plant for beginners.

Trimming & Maintenance

Because it grows quickly, expect to trim often to keep it from overtaking the tank. Each trim is also a propagation opportunity: top the stems, replant the cuttings and let the base branch. If allowed to grow emergent it will eventually flower and tend to drop its lower leaves, so most aquarists keep it pruned below the surface.

Common Challenges

The main challenge is its sheer vigour: left untrimmed it quickly shades smaller plants and outgrows the layout. Lower-leaf loss is common when stems reach the surface or are grown emersed. Insufficient nutrients in such a fast grower can show as pale or thinning foliage rather than as outright failure.

Hygrophila corymbosa is one of the most forgiving stem plants to multiply: simply cut a healthy top, strip its lower leaves and push it into the substrate while the base regrows. Its riparian nature means it shifts easily between emersed and submersed forms, so cuttings establish fast. Give it good light, nutrient-rich substrate and ideally some CO2, and it rewards you with rapid, dense background growth that doubles as a natural filter for ammonium and nitrates. The main discipline is regular trimming, which conveniently provides all the cuttings you need.