This is the 3rd year I've tried to grow squash and the 3rd year that just as the plants get to flowering the base rots away. I relocated the garden this year because of the walnut trees on the other side of the yard and a garden has been there for the past 50years without any soil amendments so it was getting rather depleted. I thought maybe squash would grow this time. I only bought one butternut squash to test it out. It was a tiny little plant and during the first month looked rather sad. Well my garden got abandoned for the year and I just got back to look at it. The sad little vine I thought for sure would die without water and care has covered the entire 50' garden and has an absolutely huge vine and leaves. However I noticed all the leaves were turning yellow so I pulled the couple weeds around the base and found it was a rotted pile of goo. It must have just happened suddenly because much of the vine is still green with flowers even though parts of it have cleanly broken off from the base. This is what happened every other year even when I kept the garden weeded and cared for. They flower and the base goes from perfect and firm to goo in less than a week. I don't see any bugs or anything. The ground isn't that wet. I haven't even watered anything this year and the new garden is on a slight slope. I used a little well composted cow manure in some places but mostly didn't fertilize because the soil on this part of the yard is very good. So far the only vining plant I've managed to grow is watermelon.