Q.Cherry Laurel care
I mistakenly over fertilized a 4.5 foot tree with a Scotts 10 10 10 slow release. It was doing very well in the small nursery pot. It now is in a 5 gallon container and is showing signs of too much fertilizer. The Container drains well, would extra watering help?
Cherry laurels have low fertilizer requirements with only a fall application required to boost the energy stores during the dormant, non-growing winter months. A fall application goes into the root system to keep the tree healthy and ready to being growing and producing blooms in spring.
Cherry Laurel trees prefer a slow-release granular fertilizer rated for flowering trees.
Try flushing the soil to remove the excess fertilizer or repot with fresh well draining soil.
https://www.gardeningknowhow.com/ornamental/shrubs/cherry-laurel/growing-cherry-laurels.htm