I understand, I think, why you didn't plant the earliest first. The Miari isn't well adapted to germination in cold soil. But the only easy way to separate pollination is to plant the earliest first. So if you planted 71 day first, wait a few days and plant the 81 day, wait a few more and plant 90 day. This would separate pollination by about two weeks each time.

Unless you can start over with Miari first, I think you are out of time to get all three in and mature before frost.

That assumes all three must be separated at pollination. I'm not sure of that.

I planted Revelation a 66 day first and followed up with Miari 301 a 76 day soon after. The 66 day was chosen because it germinates better in cold soil and matures earlier. That gives me an extra two weeks or more of corn early in the year compared to all Miari. I can plant earlier and it matures earlier.

fruitnut- the germination reason was why I chose to do it that way.

i sat down and plotted it on the calendar and I couldn't figure a way to do it so I thought I would throw it out there for people smarter than me to figure it out.

I am having second thoughts on Silver queen due to its short shelf life so I was hoping to get a supersweet planted to take advantage of its longer shelflife.

Not that its a huge cost but if I decide to go with the supersweet in a few weeks would the silverqueen seeds be good next year or do they go bad?

thanks for the help.

Corn seed is viable for a couple years. Silver Queen is an an Su type so you don't want it cross pollinating your super sweets. In the future you may want to look at the synergistics, which are not affectly greatly by cross pollination. Super sweets do have to isolated. all the Mirai varieties have a second early to mid season maturity but they do a white version (421 W) However the synergistics Avalon ( 82 day) and Celestial(88 day) are whites which are could be good substitutes for Silver Queen. If you find the synergistic Montauk to your taste, you might consider going all synergistics or synergistics with Se or Su without worrying about the cross pollination. The Harris Moran variety Revelation is also incompatible with super sweets. But the two weeks should protect you.

I planted Ambrosia se+ on April 13th. It is a 76 day bicolor with early vigor. This one could give an excellent early planting and is simular to Montauk which I planted as a fourth planting. I mix yellow and bi-color all season...se+ and synergistic.

Also watch your plant spacing and make sure you are shaking the pollen onto your ears, I had great growth but under pollenated ears which left a third to a quarter of the ear not pollenated there by not growing. If I had not spaced mine so close and more of it I would have had a better yeild.

I am thinking of not planting Silver Queen as initially planned and instead will plant an SH2 variety 2 weeks after my initial planting which will be 6/12. I assume that this should be enough time between montauk pollinating and the SH2 variety.

IF you choose an SH2 with similar maturity to the Montauk. Many of them, The Mirais for example are early maturing ( ranging from 70 "131Y" to 78 days "350BC"). account for DTM in succession plantings.

I am planting only SU (Silver Queen) and SE (Kandy Korn and Jackpot) which do not need to be separated. I'm still going to plant them 2 weeks apart, but just for spacing the harvest, not because they will cross-pollinate.