For planting tonella, well-drained, humus-rich soil is paramount; aim for a slightly acidic to neutral pH. These plants thrive under partial shade, with dappled sunlight being ideal. Consistent moisture is crucial, though avoid waterlogging. Begin by loosening the soil and enriching it with organic matter. Plant at the same depth they were grown in containers, spacing them as per their mature size. Water gently after planting, and maintain soil moisture throughout establishment. While species within tonella may have nuanced needs, proper site selection, soil preparation, and early care are universal to ensure robust growth.