Rabbits are a tough problem. You have to keep up with the chemicals and deterrents. With you not there that will be very difficult. Green tulle (bridal veil material) over the plants help. It should be pinned down so that rabbits can't get under it. That and a scarecrow sprinkler used together is a great deterrent. The scarecrow sprinkler can be purchased from Amazon. I paid $79 11 years ago, now they are $35. This one is rated the highest.
Amazon.com : Orbit 62100 Yard Enforcer Motion Activated Sprinkler with Day and Night Detection Modes : Lawn And Garden Sprinklers : Garden & Outdoor Speaking from experience, the scarecrow sprinkler works on neighbors, lawn men, homeowners and everythin