The present invention provides structures that maximize the use of minimal ground space or pot soil by providing generally vertical outward-sloping multiple cords or net trellis such as to offer increasing volume for plant foliage with height, which is adjustable to the user's desire. A compact kit includes at least two elongated leg member, and at least one elongated support, and can be assembled into structures up to approximately twice as wide at the top as at the base where the plants begin growing in soil. Flaccid replaceable cords when installed incline generally outward and upward to top horizontal rods supporting wining plants to grow generally vertically and even horizontally across the top.
