Hi, I was wondering if you could venture a guess as to what type of white growth is inside my Verbena planter, and what do I need to do about it? Photo’s are attached Thanks !
Certified GKH Gardening Expert
It is some mushroom mycelium. It is far too young to say what kind. Generally, plants don't like conditions that mushroom mycelium likes. This will indicate that the soil remains a little too moist.
I would treat with a fungicide, since it is too early to tell whether it is benign or harmful to your plant. You don't want to risk the damage that it has the potential to do while you wait.
Here are some articles that will help: