The Q&A Archives: Pressure Washing Around Plants

Question: I have flower beds with Roses, various perrinials, and ground covers on both sides of my raised porch and a really big Hosta directly underneath. I need to pressure wash the wood in order to paint. Will the cleaning solution hurt my plants when it runs down on them. Also, will it hurt my holly bushes under the deck? What should I use? I need to remove old paint, dirt,and mildew from lack of sun.

Answer: The pressure washer jet of water should remove debris, dirt, scaling paint and mildew from your siding without the addition of chemicals. I have used Simple Green in my pressure washer to remove moss and clean the siding of my house and it didn't harm the plants. You may want to cover the plants with old sheets if you need to work close to the leaves (such as your hosta) just to keep the strong jet of water from shredding the leaves. Use a mild solution of Simple Green (as directed on the label) and everything should be fine. Good luck with your project!

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