Absolutely! One thing to keep in mind with trees and shrubs is that they have both woody and non-woody roots. As the woody roots make their way to the Olla (this may take a year or more) they can encircle the Olla and eventually crack/crush it.A way to help prevent this is to inspect the root zone around the Olla. This can be done with some very gentle hand excavation to dig away the soil from the outside of the Olla. If you see woody roots starting to make their way around the Olla, it’s time to pull the Olla out of the ground and use it somewhere else. The tree or shrub root system should be well established at this point and only need watering based on the type of plant, soil type, soil moisture, and time of year.