Anything do you recommend to deter gophers?

Rodents are tough. The best way to keep them away is a fence with a portion of wire mesh buried underground to prevent them digging under. I've read that they don't like anything spicy, so hot pepper spray applied to the plants that you're trying to protect can work, but it needs to be applied frequently as it washes off.

I had deer invade and devour 1/3 of my garden overnight last summer. Hostas, lilies, phlox, sedum...all gone. ;-( I bought Irish Spring soap bars, and used my vegetable peeler to create strips that I tucked around the leaves (and blossoms) of my plants. No more deer for the entire season! Worked like a charm, and super cheap & easy to accomplish.

Place catmint plants amongst the hostas and the deer will avoid the area