Sweet potato vine cordage woven into netting for strawberry bale edges in 4x4 winter greens beds

After harvesting your sweet potatoes in the fall, select the longest and most pliable green vines for this project, avoiding any that are dry, brittle, or show signs of disease. These vines, often discarded, possess a surprising tensile strength ideal for creating a functional, biodegradable structure. To begin making the cordage, gather a thick bundle of vines and soak them in a bucket of water for an hour or two. This rehydrates them slightly, making them more flexible and easier to twist without snapping. Take two long vines of similar thickness and hold their ends together. Begin twisting both vines individually to the right (clockwise) for about four to five inches. Now, while maintaining this initial twist, wrap the two vines over each other to the left (counter-clockwise). This reverse-wrap technique is what locks the fibers together, creating a durable two-ply cord. Continue this process, twisting right and wrapping left, adding new vines as you reach the end of a strand. To splice in a new vine, simply overlap its end with the thinning end of the old one by several inches and incorporate it into the twist, ensuring the cordage maintains a consistent diameter.

Once you have created a sufficient length of cordage, you can begin weaving the netting directly in place along the edges of your 4x4 winter greens bed. The goal is to create a low barrier between the strawberry bales, which form the perimeter, and the central planting area for your kale, chard, or spinach. Drive thin wooden stakes or sturdy twigs into the soil every six to eight inches along the interior face of the strawberry bales. These will serve as your loom posts. Tie one end of your sweet potato vine cordage to a corner stake and run it horizontally to the opposite corner, creating the first warp thread. Repeat this process to create several parallel horizontal lines, spaced about three to four inches apart. Once the horizontal warp is established, begin weaving the weft. Starting at one end, weave a new piece of cordage vertically, going over the first horizontal strand, under the second, over the third, and so on. At the end of the row, pull it taut and wrap it around the 4x4 wooden frame or another stake to secure it. Continue weaving vertical strands every three to four inches. This simple over-under weave is typically sufficient to hold its shape for this application. The resulting netting creates a permeable wall that contains sprawling strawberry runners, lifts the developing fruit off the damp soil to prevent rot and slug damage, and ensures good air circulation, all while keeping the strawberry plants from encroaching on the root space of the winter greens. As the season progresses, the vine netting will slowly decompose, adding organic matter back to the bed by the time you are ready to replant in the spring.