Light
Myrtle loves the sun. Provide at least 6 hours of direct sunlight a day. Without the bright light, your Myrtle may not have as many blooms.
Water
Water Myrtle regularly. Although these plants are drought tolerant you can avoid stressing it out by keeping a consistent watering schedule. When the top few inches of the soil are dry to the touch, water thoroughly.
Fertilizer
Fertilize in the spring with high nitrogen plant food to keep your plant thriving all summer long.