AAAA Sour Kush Mediums By Green Valley - 25% THC The experience is happy, giggly, and euphoric yet lazy and relaxed. Creativity is also common while high on this strain. Sour Kush is reportedly very potent, but it's hard to come by any credible data to back that claim. The bud is lime green with brown hairs, while the flavor is pungent and citrusy and the aroma has pungent notes of lemon and lime.