tuxedo -- Lemon thyme is one of those herbs that doesn't always produce true from seed -- ie, it's possible to grow lemon thyme from seed, but its not at all uncommon for the seedlings to show a great deal of variation from the original plant. Most lemon thyme is propagated vegetatively -- usually by root division.

I am not familiar with varieties but it sounds like hybrids since it is named varieties. You have to be sure they will come true from seed to begin with.

Buzzy, I'm guessing that you're question hasn't been addressed because any of us would have to do the same legwork that you need to...check out some of the reputable seed houses and see what's on their lists. I'd expect that you could find seeds for those plants 'fairly' readily...maybe not at one mail order location, but probably between a couple. It's very common for me to buy seed from a couple of different locations. Maybe you could narrow your search a bit, and just look through 'fragrant flower seed'. I'll attach the google list for you; some of the plants look absolutely delicious! Here is a link that might be useful: click here

Hate to be Debbie Downer but I tried the Mercer sale once in the heat and said no more...the whole bus ride from across the street and all picked over stuff...not worth it. I live in Mem NW off Louetta and Champion Forest. So let me make some suggestions: Plants for All Seasons on Louetta...plant choice is up and down. But the 2 guys that run the place are so nice and helpful. Arborgate...mentioned before...awesome...worth the drive RCW...again plants are hit and miss, but they have great natives choices. Worth the drive to Houston: Another Place In Time ( I go several times a year) Wabash on Washington Buchanans ( same street as Another Place in Time) Also go to Jerry's Jungle page ...I go every sale he has. He has awesome tropicals...not sure how the freeze affected him though. Get your tomatoes in the ground super early