"tony newton" wrote
There are several types of gene sweetness described in increasing
order of sweetness SU (Sugary), SE (Sugar Enhanced), SH2 (Supersweet)
and finally the new tendersweet versions. The first two can be grown
together usually without problems*.

Hi again, Tony. I was thinking of growing Lark and Sundance. I think that
Lark is an extra tendersweet and Sundance is a standard SU. So, these 2
cannot be grown together, is that right? Can different varieties of extra
tendersweet be grown together, or do they also have to be separated from ANY
other corn?

Thanks.