How can you instantly add space to your garden without having to expand it? Install a trellis! Trellises free up a lot of real estate by allowing you to grow crops up into in your garden's vertical space. Use this easy-to-build A-frame trellis to support cucumbers, small melons, gourds and sugar snap peas. Then, plant crops that prefer cooler temperatures, including cilantro, lettuce and spinach in the space underneath the A-Frame.