I am a huge fan of thyme; I must have 20 different kinds around, at least. There are two basic types. Some (e.g. Thymus vulgaris, T. mastichinus, T. capitatus) tend to form discreet little shrubs and don't run around. I get seedlings only rarely from those. Others are rhizomatous, creeping ground covers that will wander far and wide, as far as you let them, even to the point of climbing up shrubs (e.g., T. pseudolanuginosus varieties, T. thracicus, T. serpyllum). I also find seedlings of those from time to time. I also grow lots of kinds of oregano. Greek oregano does seed around and run a bit at the root, but not too badly. O. rotundifolium 'Kent Beauty' expands very slowly and I've never seen a seedling. The rest are somewhere in between these two. The only one I have banished because of over-the-top number of seedings and root-aggressiveness is Hopley's (Origanum laevigatum). The nice thing about oregano is that it is very drought tolerant and happy with whatever incidental water it happens to get and growing it on the dry side keeps it both healthy and less aggressive, I think. This post was edited by catspa on Thu, Jun 12, 14 at 13:01

Pick often and regularly on lemon balm and other mints to improve appearance (more rounded and bushy rather than tall and leggy) and to have a constant supply. Don't take more than 1/3 of the living, growing plant at any one time. Let it regrow before repeating. FataMorgana

Perennial mints used for culinary purposes are pretty much all invasive. We have had success keeping under control by planting it in a plastic tub that is at least 12 inches deep and burying the tub in the ground. We leave 2 inches exposed at the top. I guess you can say that lots of invasive plants can be considered weeds and their purpose as weeds is to help reclaim land. Mint is used for so many things, I can see why it is a good thing that it is invasive even though it drives us gardeners crazy sometimes!

Dear Rini- I just joined gardenweb and am somewhat green so to speak- but I was hoping you still had the lemon and mint but especially the bee balm. I see you posted in June but will keep my fingers crossed that I will hear some positive feedback, please check out my list Thanks Bridgette