I have read about "gummy corn" grown by native americans. They grew it specifically to be used in a particular type of pemmican they prepared. They wanted the gummy quality of the corn, to hold the mixture together. I think they pounded the corn along with berries and bits of dried bison meat, all into a ball. I think that you got some corn seed that for whatever reason did not result in corn good for eating. I suspect the genetics of the seed, not your gardening skills.

Sticky and gummy means you waited to long to harvest it, and it was already converting the sugars into starch. Pick it younger in the future.

To add to that, personally, Silver Queen is just OK in flavor to my taste. I know everyone likes different things in corn, but I prefer the newer Sh2 corns. The best corn to date I've found, IMO, is Sun and Stars hybrid from Burpee.

When Silver Queen is "gummy" , It means you should have eaten it two weeks ago. Seriously while Silver Queen is more tender and holds better than most sweet corns, it has to be harvested in the milk stage. If the kernals ( and this applies to all sweet corn) do not squirt out a milky liquid when pressed with a thumbnail, it has gone too far to maturity or as the the old folks would say " got too hard". Has nothing to do with genetics or your gardening skills, you simply did not harvest at the proper time. As soon as the silks turn, start eating. Sweet corn like many summer vegetables is eaten in its immature stage.

Yep! you were a day late and a dollar short... OK, perhaps a week or so late.

Thanks so much!!! We will try again next year and harvest earlier.