Mine went in toward the end of May, it lists as 75-110 days and it's had all of 110 days by now... some of the cobs (yield isn't that great for me) are fattened up, but I've had a quick peel back on a couple of them and the corn is yellow.... They're in a tight block and there's no other corn near them on the site so I'm pretty certain they haven't crossed out... all the seeds were blue.....some of the plants show significant variegation of colour on the foliage with a red shading being more or less prominent..... am I just being impatient and, never having grown a flint corn before, I just need to leave it longer?.... one problem will be if we see an early frost... I'm setup to fleece my Oca but the Hopi was grown in builders bags and some of the stems are a good 7 feet tall on top of that.......
chrisc