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From: Sugar Land, TX
Region: Southwest
Topic: Non-Natives, Shrubs
Title: Roots of Savannah Holly close to house
Answered by: Barbara Medford
We could not find Savannah holly in our Native Plant Database, but found this USDA Forest Service site Ilex x attenuata 'Savannah'. The "x" indicates it is a hybrid, which excludes it from being considered a native plant. The USDA site says that roots are rarely invasive due to their great numbers and relatively small diameter. On the subject of roots, we found this website The Dirt Doctor-Howard Garrett on Savannah Holly in which he indicates caution should be used when planting container plants to avoid girdling of the roots, and has pictures to illustrate the problem. Our real concern with planting the Savannah holly close to your house is not so much with the roots and the foundation, but with the size and height of the plant as it grows. Read the indications on the USDA site on expected growth rate, height and width and make your decision from that on how far to plant the shrub from your house.
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