95 days. Open-pollinated.
Rio Grande Blue is an heirloom corn variety that can be traced back to the Pueblo Native Americans in New Mexico. Drought-resistant, deep rooted plants grow to around 5 to 7 feet tall and produce large, 8 to 10 inch long ears packed with brilliant blue kernels that are high in protein and antioxidants. Excellent for making protein-rich cornmeal and bread.
Rio Grande Blue Corn
Growth Chart
Hardiness Zones:
3 to 12
Light Requirement:
Full Sun
Soil Type:
Fertile, well-drained
Sow Depth:
1 inch
Plant Spacing:
8 to 12 inches in blocks or short rows
Germination Temp:
60°F to 90°F
Germination Time:
5 to 6 days
Maturation:
95 days
Growing Tips
Direct sow about one week after the last spring frost or when soil temperatures are consistently above 60 degrees F. Plant seeds 1 inch deep and 8 to 12 inches apart in blocks or short rows to ensure good pollination. Germination should occur within 5 to 6 days.
