Botanical Name: Zea mays
Days to Maturity: 90–100 days
Hardiness: Frost-sensitive annual
Plant Dimensions: 5'–7' tall
Variety Information: Two or more 10"–12" long ears (may grow longer in ideal conditions) on each stalk, with dark blue kernels.
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is at least 60°F; ideally 65°–90°F.
When to Start Inside: Not recommended.
Days to Emerge: 5–10 days
Seed Depth: 1"–1 ½"
Seed Spacing: A group of 2 seeds every 12"
Row Spacing: 24"–36"
Thinning: When 4" tall, thin to 1 every 12"
Special Instructions: Do not mulch when weather is still cool; the roots of young plants need to be in soil that is warmed by the sun. When the weather warms up and plants are established, mulch to a depth of 2" or 3" with a material such as straw, leaves, or compost, to conserve moisture, reduce weed growth, and keep the roots warm. Place stakes or cages upon transplanting to avoid disturbing expanding roots later.
Harvesting: Let the ears dry on the stalks. They are ready for harvest when they are hard and you can no longer leave a mark on them with your fingernail. Before the first fall frost, give each ear a twist until it breaks off. Peel back the husks, then hang the ears in a cool, dark, dry place for 4 to 6 weeks to cure. This is important to prevent mold.