The myrtles genus prefers a well-drained, fertile soil, with plenty of sunlight and moderate water needs. Start with a cleared, fertilized area, and plant each specimen 2-3 feet apart, at the same depth as the container. Water thoroughly after planting and keep consistently moist for the first few weeks. All myrtles species appreciate occasional pruning to maintain shape. Be aware that different species may have specific requirements, so research your chosen variant carefully.