Hydrocharis is an aquatic plant genus requiring high sunlight exposure and copious water. These plants thrive in warm temperatures (16-30°C), preferring nutrient-rich, waterlogged, or underwater soil. Common care challenges involve managing invasive growth, dealing with aphids, or resolving underwater leaf rot. Although they actively grow in spring and summer, hydrocharis plants may require protection in harsh winter, and size management after flowering cycle completion in autumn.