Answer: If your redwood tree is 10 years old, I think you're probably giving it the care it requires. Redwoods thrive in full sunshine, adequate water and slightly acidic soils. Since acid-loving plants such as azaleas and rhododendrons thrive in your gardening region, your redwood should thrive, as well. If you find the leaves are not as green as in the past, you might want to have your soil tested. A soil test will indicate the pH and if it is not slightly acid, the test results will provide a recommendation on how to change the soil's pH. I think your tree will continue to thrive without any changes on your part. Enjoy your magnificent tree!
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