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We planted some scrub oak plants a few years ago that we got from a nursery. Although they come back every year they never get any bigger. They are still the same size as when we planted them. Do you have any suggestions on how to make it take off?
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Most important for tree success if proper planting. Were these plants in containers/pots and if so I hope the plants were taken out of pots before planting? Did they have circling roots because the roots need to grow out and spread for tree to get established? When you planted how wide did you dig the hole to encourage roots to spread? Proper planting will help plants do well.
Since these are native plants and are adapted to our soils, they don't need fertilizers. The best thing is for good root establishment and with proper watering the trees should grow well. Here is a USU Publication on Gambel Oak Care (http://extension.usu.edu/files/publications/publication/HG-514.pdf).
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