Which are the acorn squash, and which are the birdhouse gourds? I cleaned out an acorn squash over this pot, planning on drying and saving the seeds. I then decided I wanted to use the pot for hardshell gourds, so I removed the acorn squash seeds to another location. Apparently a few got left behind, as when the seedlings started to come up I didn't see gourd seed casings, but acorn squash casings... oops. Then the gourds sprouted. If you look closely you can tell them apart. Do you know which is which? More importantly: do you think they'll cross-pollinate? I hope not, but it'll be an experiment, ay?