I bought a beautiful fresh mint plant from the garden centre a couple of weeks ago. It did well for a weeks or so, but now the leaves are turning brown on the edges. I have be careful to keep watered and it is not in the sun. Any ideas ? I won't even bother telling you about my poor old Thyme. It seems herbs are very difficult to maintain.
Yes, perhaps too much water? I bought a cheap mint plant last year from Waitrose (the sort you're supposed to keep in the kitchen), put it in a large pot outside and it's large and very healthy now with hardly any extra watering. Same goes for sage, marjoram, thyme, chives, dill - all healthy with hardly any watering.