Don’t forget about alliums! Planting ornamental onions or chives around vulnerable areas creates a natural gopher barrier. The bulbs are particularly effective.
I’ve found that mixing different deterrent plants works best. My current combo is lavender, rosemary, and marigolds - beautiful, fragrant, and gopher-free!
Remember that no plant solution is 100% effective. While these plants help, you may still need occasional trapping for persistent gophers. It’s about integrated pest management.