I can send you rooted pieces of either applemint, peppermint, or vinca (not an herb, but I figured I'd toss it in as an option.) I have dill, cilantro and evening primrose seeds. I've had some luck with rooting pieces of rosemary and lavender just by sticking them deep into the ground and keeping them moist. I also have a few other things if you want to check out my trades list.

I'd love to trade for your Dark purple and white Lilacs. If you want a bunch of things, I would also like the bee balm and creeping phlox.

I can send you chocolate mint and spearmint in exchange for lilacs. I love the super fragrant ones, any color. Will this work for you?

are the lilacs rooted? i would love to trade some plants with you for a white and a dark purple lilac (i have two 12ft tall lavender lilacs) and some creeping phlox.
i have grapefruit mint, lime mint, lavender mint, black stem peppermint, orange mint, ginger mint, kentucky colonel spearmint, sweet woodruff, tansy, Monarda fistulosa, Comfrey (sterile), Lemon Balm, and Soapwort (saponaria officinalis).
Even if you don't want to trade or have plants to trade i'd be happy to send them to you for the postage.

OMG, I have been so involved with starting a hosta garden that I completely forgot to check this forum. I am trying to do both a hosta and herb garden this summer. I am so sorry for not answering, if anyone is still interested in trading or postage PLEASE let me know.
Corinne