Tropical ChickweedThis annual generally germinates during the cooler weather of winter and spring in the deep South. It prefers areas with plenty of moisture and also grows well in the shade. Stems of tropical chickweed are weak and usually bend to a prostrate position. Leaves are opposite each other on very short stems. They are bright green and round or kidney-shaped. Flowers are inconspicuous and formed in small clusters from long stems that rise from the leaf junction. There are five white petals that are very narrow and deeply notched. Seed capsules are oval. Tropical chickweed thrives in Florida and around the Gulf Coast into Texas.