You can grow a wide range of flowers, fruits, and vegetables on trellises. However, unless you’re willing to tie the plants manually, they should be climbing plants. These are just some of the plants that grow well on trellises: honeysuckle, clematis, peas and sweet peas, morning glories, nasturtiums, jasmine, cucumbers, summer and winter squash, pole beans, melons, grapes, and hops.