Hay bale

I planted a squash (Metro) into the hay bale today. The trowel slipped easily into the bale. It seems to have composted inside OK - but then out came a million ants! They have decided it's a good place for a nest. I don't think they are very pleased about the soaking I gave the new squash plant. I await developments. What else will go in the hay bale? - Answer: A couple of days later, another nasturtium and a butterpie squash.