The Q&A Archives: Viburnum

Question: Hi, I cant seem to find the root structure or how large the roots grow under ground. I want to use these as a hedge infront of my house and I know I will have to keep them pruned and trimmed to keep them the size I want, but how far apart do you recommend I plant them, the card says 6 ft, but I dont want them to grow that wide. Planting in 22ft length space & 2 1/2 ft wide. Suggestions?

Answer: Sandankwa viburnums grow in excess of 10 feet tall and 6 feet wide. You cannot keep them only 2 1/2 feet wide, even if you pruned them hard every month. They simply will not conform to your narrow planting bed. If you want an evergreen hedge that remains less than 3 feet wide, plant Compact Walter?s viburnum (Viburnum obovatum) might be a better choice. It grows 4-6 feet tall and half as wide. This Florida native features a mass of small white flowers in early springtime then reblooms in autumn. New growth appears reddish and it grows more compactly than the tree viburnum. Red fruits ripen to black in the fall, attracting wildlife. In North Florida, it is semi-deciduous. It grows in a range of soils with many cultivars showing drought tolerance once established in the landscape. Many compact forms have been made and are available including Whorled Class, Mrs. Shiller?s Delight and Densa.

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