Very clever idea. Been wondering how to handle Zuchino da Fiore* (zucchini bred to produce blossoms) sprawl and keep the blossoms clean. This looks perfect. Might build a hay bale fort filled with dirt and let the blossoms hide the whole thing as they sprawl up and over the bales.
*Bill McKay carries the variety. Tomatoville
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Seeds from Italy (GrowItalian)