Propagating Ammannia senegalensis from Cuttings

Ammannia senegalensis, the copper leaf ammania, is a Lythraceae stem plant from western Senegal whose leaves narrow and redden under intense light. It propagates easily from cuttings: cut a 5 to 10 cm top below a node, strip the lower leaves and insert it firmly into the substrate while the base sends side shoots. It needs intense light, grows fast, performs well with added CO2, prefers soft acidic water and requires iron supplementation. Regular topping keeps it dense, and consistent iron and light maintain its twisting red leaves.

Overview

Ammannia senegalensis, known as copper leaf ammania, is a stem plant in the family Lythraceae native to western Senegal, where it often grows as a weed in rice paddies. Its stem carries opposite leaves that shift from broad and green to narrow and reddish, becoming especially red under intense light. It is propagated easily through cuttings inserted into the substrate.

Propagation Method (Cuttings)

This species reproduces readily through cuttings: a top section is cut from the stem and inserted into the substrate, where it roots and continues growing. As with related Lythraceae stems, the trimmed base then sends out side shoots, so a single plant can be multiplied into several.

Step-by-Step

Cut a healthy top of roughly 5 to 10 cm just below a node and strip the lowest leaves so a clean stem segment can be buried. Insert the cutting firmly into the substrate so it stays anchored, then leave the parent base in place under good light to push new side shoots. The cuttings root easily, so handling is straightforward compared with more temperamental reds.

Conditions for Healthy Growth

Intense light is needed for optimal development and for the leaves to colour up red. The plant grows rapidly under good conditions, tolerates flooded shallow-water situations, and performs well with carbon dioxide added to the water. It prefers soft, acidic water but is hardy and adaptable, and it requires iron micronutrient supplementation to do well in the aquarium.

Trimming & Maintenance

Because it grows quickly under strong light, regular topping keeps it compact and dense, with each cut top replanted and the base branching below. Keeping the lower portion lit and supplying iron consistently helps maintain the narrow, twisting red leaves that the plant produces under high light.

Common Challenges

Without intense light the leaves stay broad and green rather than narrowing and reddening, and the strong colour fades. Iron deficiency limits performance in the aquarium, so traces must be supplied. On emersed plants flowers form inconspicuously from the leaf axils, and stems convert between emersed and submersed growth as conditions change.