Your Small Kitchen Garden demonstrates how to twist a tomato plant around the supporting string of a hanging string trellis. This video is a follow-up to Tom… Video Rating: 5 / 5 Question by dotty: what causes the leaves on a tomato plant to curl? I have 2 tomato plants , each in it’s own container, blk plastic 12 to 14 ins. deep , 1 plant ,the leaves are curling upward , the other plant is fine, they both have exactly the same soil and the same growing conditions [ water and light] Best answer:… Read Article →