Cucumbers need a trellis if you'd like to have straighter cukes, healthier plants, and easier harvests. Carson Downing You don’t need a trellis to grow cucumbers, but if you want to maximize your gardening space and keep your cucumbers off the soil, grow your cucumber plant on a trellis. Whether you like picklers, slicers, or burpless types of cucumbers, vining varieties are available that will...