First grow in 15 gallon pots.. just how big do the plants usually get? : r microgrowery Making a trellis doesn't have to be complicated! Lightweight aluminum or PVC pipes, hazel poles, or long bamboo canes are a great base for your plants to climb, and doubles as a Growing Carnivorous Plants: My Journey from Curiosity to Community SANSI Lighting Watermelon, Citrullus lanatus, on a trellis in a garden Stock Photo Alamy 4 Common Topsoil Mistakes That Can Stall Plant Growth