Star-grass plants thrive in well-drained soil and grow best in full sun or partial shade. Start by preparing the soil to ensure good drainage. Position the plants, taking care not to crowd, as they enjoy air circulation. Regular watering is essential, but avoid standing water, a leading cause of rot. Practice regular fertilizing during the growing season for optimal growth. Although general guidelines are helpful, be aware that individual species within the star-grass genus may have unique requirements.