We've never grown herbs specifically for tea, it's usually your basic kitchen stock and then some - basil, Thai basil, thyme, lemon thyme, rosemary, marjoram, oregano, spearmint, lemon balm, sage, dill, chervil, borage, ramsons, chives, parsley, lovage, savory, cress and purslane - without going outside to check, I think that is it. But you're definitely right, many of them need harvesting soon.

Lemon verbena I bought dried at a medieval market last year, unfortunately haven't found seeds for yet, but they are definitely on my to-get list for next year. ^^

As for teas, I love a blend of lemon thyme, lemon balm, (what a pity yours is gone, I'm sorry), sage and a small sprig of rosemary, it works great both for hot and cool weather. :) Borage flowers can also be brewed, and definitely have a mood-enhancing quality, though the taste takes some getting used to.

What other herbs are you growing?