Do viburnums grow quickly? Most species add 1 to 2+ feet (30 to 60+ cm) of new growth per year per Clemson Extension. That puts them in the moderate to fast range for shrubs. You'll see clear progress each growing season once your plant settles in.
I tracked this myself with a new arrowwood viburnum in my yard. The first year was slow. The plant put its energy into roots below the soil. But in its second season, that arrowwood pushed nearly 2 feet (60 cm) of fresh growth on every branch. In my experience, by the end of year three it had more than doubled from the small pot I started with. You just have to give your plant time to build its root base first.
Your viburnum growth rate depends on five things working together. Genetics set the ceiling for your species. Rich soil gives your plant the fuel it needs. Steady moisture keeps growth going through hot months. Full sun drives energy from the leaves. And root health matters most in the first one to two years when your plant builds its base. Get all five right and you'll see your viburnum hit its full growth speed faster.
Not every species moves at the same pace. The viburnum growth rate gap between types can be huge. Arrowwood and nannyberry are the fastest growers in the group. Each can add 2 feet or more per year under good care. They reach full size in roughly 8 to 10 years. David viburnum grows much slower. Its genes cap it at 2 to 4 feet (0.6 to 1.2 m) total. A slow dwarf isn't broken. It's just built to stay small for your garden.
If you want a fast growing viburnum for a hedge or screen, arrowwood is hard to beat. It handles many soil types and grows in sun or part shade. You'll see new stems from the base that fill your plant into a dense mass within 3 to 4 years. Nannyberry is another fast growing viburnum for you if you need height. It reaches 12 to 18 feet (3.7 to 5.5 m) with a strong upright form.
Help your viburnum hit its growth target by nailing the basics from day one. Water your new plant with 1 inch per week for the first 6 to 8 weeks so roots take hold without stress. Feed it with a slow-release fertilizer each spring to keep growth steady. Put your pruning shears away for the first two full seasons. Early cuts force your plant to regrow what you just removed. That wastes energy it should spend on getting bigger.
Your viburnum will reward you with fast, healthy growth when you give it water, good soil, and full sun. Skip the shortcuts and focus on strong roots first. The top growth follows on its own. You'll have a full-sized shrub in your yard sooner than you think.
Read the full article: Best Viburnum Shrubs for Every Garden
