As Steve suggests, I would try the Spice House first.
You could also look at Matanzas Creek Winery in California (they have an online shop).
Though not my favorite winery for wines, it is a beautiful place with vineyards surrounded by lavender fields.
If nothing else, click this link for inspiration:
http://www.matanzascreek.com/estate/index.html The sell a 3-pack of grill sticks for $7.50 (bundled lavender to use on the BBQ, which might work for the bees).
They also sell tins of culinary lavender. Let us know what you find.