I've always read that corn doesn't like its roots to be disturbed so I've never considered transplanting, I wonder if that's why your greenhouse starts didn't put on enough growth? Of the 3 varieties you tried, which worked out the best this year?Joel_BC said:I wonder whether the row cover (if made using clear plastic sheeting, not remay cloth) could help with the early development of sweet corn? I've had fair to very good results with sweet corn for over 25 years, using mostly hybrid varieties - but all that changed with the change in weather. This year, we started a lot of our corn (three varieites, for hope/experimentation) in the greenhouse using 38-cell styrofoam starting trays. We ran out of room to start all our corn in the greenhouse. But the plants that were started in the g.h. outperformed the ones directly seeded into rows in the garden. But still, probably 90% of the direct-seeded corn rotted rather than germinated, and the g.h.-started plants did not develop all that well once they were in the garden. Overall it was a terrible corn year.moolie said:The only problem with June generally being frost-free is that June is our rainiest month, and the "rainy season" can extend well into July like it did in 2011. Last year we dealt with it as best we could by using water-filled "kozy koats" or "wall-o-waters" to keep our tomato and pepper plants warmer than the cool ambient temps, and using row covers.
Plastic row covers, over plastic hot caps (which we also have) might actually do it. We also place "heat sink" rocks/cinder blocks near our tender plants when they first get planted out--they heat up during the day and radiate that heat out overnight.
I think it's worth trying for us next spring since hubs is so into corn. Don't know if we could grow both flint and yellow corn in our small yard without it cross-pollinating though