With the height of Summer at hand, the groaning tables of the farmer's market beckon.  And since nearly all flavors except the alcohol and balancing sugar sweetness and based on growing things, it seems appropriate to focus on vegetable bittered amaro. Bittering agents can range from things we will almost never use in the kitchen such as gentian roots, wormwood, aloe, cichona bark, angelica, mugwort, quassia, cherry bark, or Chinese rhubarb root.  While some we might eat straight, such as Arugula, Artichoke, and Cardoon (an Italian vegetable that is part of the Daisy family with huge stalky leaves).  

Here is a range of semi-famous and lesser known "veggie" bittered amari.  All with some discounts.  To encourage exploring, I'll offer a larger discount for buying 2 or more varieties.