Why is my Elfin Thyme dying?
It's very well established...been in place between my patio pavers since late spring, and thriving. It has spread like wildfire, and is at the point where we're going to have to start trimming it, just to see the pavers.
Just within the last 2 - 3 weeks, it has developed brown patches. It started in one planting, and now there are several spots where the planting is almost completely dead. As far as I can tell, it's fairly random. Some spots have this problem, some don't, and there doesn't seem to be any connection.
The plant is browning, from the root side, toward the end of each stalk. There are stalks that are completely brown, except for the last inch or less, which is as vibrant and healthy looking as the rest of the plant.
Any ideas?