And just in time. The winter squash are growing fast sending out vines that are three feet long and it is only July 12.
The trellis is about 8 feet tall and 45 feet long on a mound 48 feet long and 4 feet wide. It was built with balsam fir posts and poles. Six posts were sunk about 3 feet into the ground. Long poles were attached to the tops of the posts using 6-inch wood screws. Against the top poles I angled 12-feet long poles and attached these with 3-inch wood screws. Onto the angled poles I attached 40 horizontal poles (12 to 13 feet long) also using wood screws. A loose net of twine was looped over the horizontal poles to keep the squash directed to climbing rather than sprawling.
The mound is built from layers of bedding, soil, and moldy hay. I used this layering method because the soil is so poor and needs a lot of organic matter to produce well. Two rows of winter squash were planted, one on each side of the mound, for a total row length of 90 feet. That will be a lot of squash by September.