doublefile viburnum

Doublefile viburnums should be watered consistently, as they prefer even moisture levels. Water deeply once every 10–14 days in the summer, or when the top 2–3 inches of soil has dried out. Water more often during especially hot and dry spells. In general, be sure to water so that the soil is moist but not soggy. In the winter, you should reduce watering frequency to once every 2–3 weeks, or when the soil dries out.

Doublefile viburnums need full sun to partial shade for best performance. They prefer at least 4–6 hours per day of direct sunlight with acidic, well-draining soil. For optimal growth, they should be planted in a location that receives morning sunlight and is sheltered from the hot afternoon sun. In less than ideal conditions, such as areas with intense afternoon sunlight or hot climates, the viburnum can do better with partial or filtered sunlight.

Doublefile viburnum grows best with regular pruning. In March or April, before it begins to bloom (generally April or May in the Northern Hemisphere, October or November in the Southern Hemisphere), the plant should be pruned to encourage thicker, fuller branches and a more attractive form. Cut back at least half of the previous year's growth; if the plant has grown very tall, cut it back to the desired height. This will help encourage more blooms and healthy growth. Remove any dead, diseased, or damaged branches. To further shape the bush, prune back the stems that have grown outside of the desired boundaries. Finally, remove any shoots that are growing below the desired height.