All depends on where you are there was a lot of hemp grown around here and they are trying to get going again
I bet, I lived in Clayton county until I was 9. i pulled up my childhood home on google earth, you can still see the outline of where my dad had the garden. It's a grass lawn now, but that rectangle is still viewable from space apparently as is the ring where my tractor tire sandbox was. He started all the plants under T8's in our basement during Feb/March and then transplanted them while everyone else was putting seed in ground in late April or early May. We always had 3 deep freezes full of food between our garden and the farmer we purchased a whole steer and a whole sow from. Havn't found food that fresh since, a few farmers markets came close, but my parents knew how to farm right in that part of the country. As far as I care the soil is perfect there.
Since starting my closet grow, I've always wanted to do his technique and start a veg plant about 1-3 months before putting it outside to turn into a monster, but in Florida it'd just become a bug, mildew and mold attractant. As close as we were to the Mississippi there, I'm not even sure the N.E. corner of Iowa would be dry enough to get a mold-free plant out, but it'd be better for the plant than here with our 100°F and 99%rh summers.