Anyone have an aversion to pressed or dried flowers or herbs in letters?

I have no problems, and honestly didn't consider this, so thank you for posting!

I personally don't have any issues!

I would ask the individual directly beforehand OOC, or at the very least, wrap the dried plant separately in another (smaller) envelope or folded up waxed paper?

Because a great deal of the player base doesn't use the forums actively or at all, I suspect the best course would be to individually ask anyone you intend to send floral bits to whether they have any allergies before sending.

good question tho b.c. some people have Serious allergies! I had an aquaintance once who was Deathly allergic to lavendar

Not I!