We tossed an aged acorn squash out on the horse manure pile when we didn't get it eaten, some time last winter. Now we have squash growing everywhere. We are in the Pacific NW. the days are getting shorter and the squash while formed is not getting huge. We don't water it as there is no access that far out in the pasture. It is still blooming with flowers also. Should we pinch it back a bit, the huge leaves and blossoms, to allow the formed squash a chance to mature more?
Yes, you certainly can pinch off the new growth to try to give more energy to the fruit.