Rotala sp. 'Ceylon'Laboratory grown stem plant (Tissue Culture). Rotala rotundifolia sp. 'Ceylon' is an easy to care for stem plant which develops a pink coloration in an ideal climate with CO2 and sufficient light. In lower light conditions without adequate nutrition the plant remains green. For optimum growth, it is best trimmed to create dense bushes and can be used as a background and mid ground choice. The plant arrives green in a sterilized tissue culture cup.