Q.too much nitrogen in soil
I probably put too much Miracle Grow soil in a new planting area (not enough good dirt) so all my flowers are super green leafed. Can I do something to fix it?
Yes, you can add Phosphorous to the soil. Bone Meal is a good way to do this.
Here are some links to help you.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/too-much-nitrogen-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm