Q.verbena leaf edges white
Why are my verbena leaf edges white, looking bleached out? The leaves are drying where they are white. Did I burn then while watering with fertilizer? I have several verbena plants in pots, full sun, on my deck. They have been in the pots 3 weeks. A couple of the plants have shriveled, also.
Yes, your plants may have been burned from the fertilizer. You can try flushing the plants with water to remove excess fertilizer.
Here are a few links that may be of help.