Glass Gem Corn
Glass Gem Corn
Probably one of the most sought after open pollinated flint corns on the market today. Glass Gem corn is a stunning popping corn that can also be dried and ground into cornmeal. Plants can reach 7' tall producing ears from 4-8".
A good history of the Glass Gem variety can be found at Native Seeds.
Plant sweet table corn directly into the garden in early to mid May. It is possible to start corn a few weeks earlier and then plant into the garden in late April for an extra early start. Corn seed may rot in cold wet soil. Popcorn (Flint), Dent and Flour corn harvested in the fall can be planted later, late May or June.
Make furrows 2 inches deep with a hoe and sow the seed in groups of 2-3 every six to eight inches. Cover with an inch of soil. In is important to plant corn in blocks to allow proper pollination and cobs to be full with kernels. Four short rows are preferable to one or two long rows.
Harvest sweet corn when the husks are green and the silks begins to dry brown. Check the kernel development by peeling back the husk a bit and checking if you want. When growing other kinds of corn besides Sweet Corn for fresh eating allow the husks to dry and turn brown. Flint corn can be ground into a hard meal. Certain flint corns are excellent popcorns. Flour and dent corn makes a softer meal. Flint, dent and flour corns are often used as decorative autumn corns.
All corn ears will mature for seed saving when the husks turn brown or tan and become papery and dry. Keep the cobs dry and they can be saved until the next planting season or twist the kernels off the cobb and save the seed. Corn pollen will typically settle within 20 ft but a stiff wind can blow the pollen for miles and therefore if you are growing one corn that is producing pollen and another that has ear silk emerging from the husk which will catch the pollen it will cross. You should grow one variety if you want pure seed or grow an early kind and a late kind that shed pollen at different times.