Q.How do I keep my pink kousa dogwood producing pink flowers?
This is my 3rd season for my pink kousa dogwood. This year the flowers were a very pale pink, almost white. Is there anything I can do to keep it producing deep pink flowers like it had the 1st year?
Your soil pH may not be acidic enough; pink dogwoods do best when the pH is below 6.5. I recommend that you test the soil around your tree. To lower the pH you will need to add aluminum sulfate, and you will probably need to do it for a few years at least as pH adjustments happen slowly over time. To get a soil test you can contact your local extension office which you can find using the following link: https://www.gardeningknowhow.com/extension-search/