Hygrophila serpyllum

Hygrophila serpyllum is a herbaceous perennial plant belonging to the Acanthaceae family. In agronomic and botanical practice, this species is classified as a semi-aquatic or riparian plant, capable of adapting to conditions of high humidity or partial submersion in water.

This species is native to the tropical regions of India and Southeast Asia. In its natural habitat, it thrives in moist environments such as riverbanks, swampy areas, and wet lowlands. Due to its high adaptability, it is successfully cultivated in ornamental horticulture across the globe.

The plant is characterized by creeping stems that easily develop adventitious roots upon contact with the substrate. The leaves have a distinctive opposite arrangement, often appearing round or ovate in shape. Flowering occurs with the production of small, inconspicuous blossoms, which are generally less significant than the lush vegetative growth.

Successful cultivation requires high atmospheric humidity, nutrient-rich soil, and a stable temperature range between 22–28 degrees Celsius. The crop responds positively to micronutrient supplementation and consistent light levels. Agronomic management relies heavily on preventing the root system from drying out, which is a critical factor for maintaining the plant's health.

The primary use of this species is in aquascaping, decorating paludariums, and creating moist greenhouse compositions. It is also utilized in breeding programs to develop new ornamental varieties. Common threats to the crop include fungal diseases caused by excessive humidity with poor ventilation, as well as pests like aphids and spider mites.