It will probably recover - it has in the past - but it will be a long time before any of its leaves are fit for the kitchen.
This one is in even worse shape, having lost almost all of its leaves:
I think that one will probably have to go. The only half-decent Thyme plant I have is one that has been in the coldframe over the Winter (there's a moral in that tale, isn't there?):
Well, at least it is vaguely green, but it could hardly be described as "luxuriant", could it?
Definitely the time had come for a Thyme-renewal! I was at the Garden Centre on Easter Monday, buying some compost for planting-up some more potatoes, when I noticed that they had a lot of healthy-looking herb plants in 5-inch pots. They were on special offer at four for £6, a reduction of about 20%. I bought four, though in retrospect maybe I should have bought a few more.
Since the new plants are primarily for use as culinary herbs, I chose two specimens of Common Thyme
But I also got one of Broadleaved Thyme. This is very similar in taste and smell to the Common Thyme, but it has a more creeping habit. I deliberately chose one which already had some quite long shoots.
Then purely for its ornamental appeal I chose this Golden Thyme ("Archer's Gold"). Despite appearances, it is not a lemon-scented one.
I'll pot these up into bigger containers next weekend, when hopefully the weather will be more conducive to outdoor gardening!
In the past I have grown Thyme from seed, but it takes a long time to get it to maturity, and I felt that in the present circumstances I could not wait that long. In any case, I think that £1.50 for a decent-sized healthy young plant is pretty good value, especially as I didn't have to incur any delivery charges (our local Garden Centre is less than 2 miles from our house). I always like to inspect very carefully the plants I buy, and I often spend a fair bit of time choosing the nicest specimen on display, and that is not something you can do when you buy by mail order.