Beginner Gardening: sick red verbena, 1 by Tex68

Tex68 wrote:
Verbenas are also prone to mildew causing the leaves to turn brown. This happens when the leaves don't get a chance to dry-out during the night.
I also notice the same problem when the leaves touches the ground or soil while they're wet. Do your watering during the daytime or the morning so the leaves have the chance to dry-out in sunlight. Mulching will also help with the problem.

Less deep watering is better than watering everyday.