I think I may have to get used to a new way of growing squash here in zone 7b.
I always think squash seed doesn't go in the ground until the ground is well warmed up.
But I had four squash plants pop up as volunteers about a month before I would have thought to plant squash. And they have thrived. One has now bit the dust from the vine borer, after getting one squash nearly mature. (Not sure what kind it is, maybe some kind of cross).
The one that is doing best, has seven well developed acorn squashes on it. I have been keeping on dumping more and more dirt on the base of the stem and the new stems appearing. So far that seems to have worked to save it. If it gets through another week or two, the squash should be ready.
We talk about planting late to avoid the SVB's, but here in the south, we have two generations of them in a season, so you would have to plant very very late, to the point that the days are getting shorter and cooler. But it may work to plant very early. I think these plants got a good head start before any vine borers and squash bugs showed up, which helped them be able to set fruit.