Glass Gem Corn


Glass Gem Corn | Certified Organic by Ecocert Canada
Zea mays | Annual | Heirloom

Bred by Oklahoma native Carl Barnes. He selected the stunning Glass Gem Organic corn seeds from several traditional heirlooms known for their beauty. Sturdy plant that are 6-8′ tall, with several 7-8″ long ears. Used for popcorn or ground into flour. Consider starting this one indoors, as it has a long maturation. No two cobs are identical.

Planting tip: Direct sow as soon as the soil has warmed up to 19°C.

Harvesting tip: Harvest when ear silks have dried out and kernels are full and filled up and appropriate colour has appeared.

Storage tip: Cool up to 0°C with an hour of harvest and store in high humidity. Consume within days otherwise sugar content decreases in time.



Seed depth : 1-2”

Plant spacing : 8-10”

Row spacing : 24-36”

Sun tolerance level : Full Sun

Days to germination : 5-8 Days

Days to maturity : 105 Days

Germination temperature : 15-32°C, optimally 29-32°C


Additional information

Corn Size


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