What to Do After Fertilizer Burns Your Flowers to Save Them
What to Do When Flowers Are Burned by Fertilizer and How to Save Them

Wash the roots and repot: promptly take the over-fertilized flowers out of their pot, then rinse the roots clean, and cut off the damaged roots and the dried, yellowed branches and leaves, while preparing fresh soil and a new pot for the flowers. Water thoroughly: water the flowers immediately, watering until the water runs through and out the drainage holes, so as to flush the potting soil and wash out the highly concentrated fertilizer; afterward, observe the flowers or take further measures.