Helwingia prefers well-draining, rich, and slightly acidic soil. They thrive best under partial to full shade conditions and need regular watering for optimum growth. To plant, prepare an area with adequate organic matter, place the helwingia plants maintaining adequate spacing, and water thoroughly. Mulching can help retain moisture and control weeds. Note that specific species within the helwingia genus may have varying requirements. Always research your specific plant species prior to planting to ensure optimal care and growth.