Guyanese hygrophila

Guyanese hygrophila, scientific name Hygrophila costata. Widespread throughout the Americas and throughout the Caribbean. An active aquarium trade has led to the fact that this plant has appeared in the wild far beyond its natural range, for example, in Australia. It grows everywhere, mainly in swamps and other stagnant water bodies.

It has been on sale for a long time as Hygrophila guianensis and Hygrophila lacustris, by now both names are considered synonymous. In addition, it can be found under the erroneous name Hygrophila angustifolia, but this is a completely different, albeit very similar species from Southeast Asia.

Guyanese hygrophila is able to grow in two environments – under water and on land on moist soil. The appearance of the plant depends on the place of growth. In both cases, a strong stem 25–60 cm high is formed, but the shape of the leaves will change.

When completely immersed in water, the leaf blade acquires a narrow ribbon-like shape 10 cm long. The leaves are located close to each other on the stem. From a distance, the clusters of Hygrophila Guyana are somewhat reminiscent of Vallisneria. In the air, the leaf blades become rounded, the gaps between the leaves increase. In the axils between the petiole and the stem, white flowers may appear.

Comfortable conditions for growth are achieved in bright light and planting in nutrient soil, it is advisable to use special aquarium soil. When grown in an aquarium, the sprouts should be trimmed regularly to avoid growing beyond the surface of the water.