I had a lovely thyme in a 10" plastic pot with attached saucer. Leafy, green, full of life. All of a sudden -- that is, within 2-3 weeks -- it's turned into a haystack. the stems have shed all their leaves except at the last 2-3 inches, where they still look good. The stems look dry and brittle. I thought this might be because we have had so much rain lately, and perhaps the soil had become (and remained) waterlogged. I've been tipping out the extra water regularly now, but the plant doesn't look any better.
Does anyone know what this defoliation might be due to?