How to Grow Knockout Roses1
How to Grow Knockout Roses
Choose a location for the Knock Out rose that gets at least three hours of direct sunlight each day.
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Check to see if your soil drains quickly.
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Test the soil pH.
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Mix lime into the soil to raise the pH or add aluminum sulfate to lower the pH.
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Troubleshoot if you need to change the pH when your plant is already in the ground.
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