Time isolation of corn
I'm growing out some Hickory King yellow dent this year, but I also have two other dent corn varieties in the freezer that are getting old and need planting out - Truckers Favorite yellow dent and a white dent heirloom from local sources. All three are Deep South types corns with approximately 100-110 day maturities.
Would I be safe giving each variety a thirty day difference in planting dates to isolate them from cross pollinating or would I be taking too much of a chance? I live in North Florida so the growing season is pretty long.