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Yes espalier is the actual correct term. I was not familar with this growing technique. I had only seen it used with grapes in vineyards. I have not spent much time in upstate NY but feel like I should since I live closeby now.

Apple and grape orchards are abundant here, since we are in the Finger Lakes region and the climate is perfect for fruit. I should visit Vermont, lol. I've never been, and I'd also love to see some areas of Maine.