Answer: I'd go with the trellis idea. You can choose from all kinds of plants and get quick coverage without the concern of invasive tree roots, litter, etc. You can build a trellis inexpensively or you can purchase pre-made trellises, or you can build a functional arbor in a weekend. I'd choose evergreen vines but for really quick coverage you might also grow annual vines such as Scarlet Runner Beans, Hyacinth Bean, Cardinal Climber or Sweet Peas. Good luck with your project!
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