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Corn Seeds, Northern Lights
(Zea mays). Flint corn. Northern Lights corn is like a watercolor masterpiece, with kernels in an awe-inspiring, artful palette. The six- to eight-inch ears mature on four- to five-foot stalks, and like all breeder Ed Schultz’s corns, it stands up to cold overnight temps and short growing seasons!
- Sprouts in 7–10 days
- Days to harvest: 100–110 days
- 6–8 hours of full sun
- Planting depth: 1–1.5 inches
- Plant spacing: 8 to 12 inches
- Height at maturity: 4 to 5 feet
- Ideal temperature: 65°F to 85°F
- Frost hardy? No
Growing Tips
Northern Lights corn thrives in well-drained, fertile soil with consistent moisture. Ensure the soil is rich in organic matter and has a pH between 6.0 and 6.8. Mulching can help retain soil moisture and suppress weeds. Regularly monitor for pests such as corn borers and aphids.​
When to Grow
Plant Northern Lights corn seeds outdoors in late spring, after the last frost date, when soil temperatures have warmed to at least 60°F. In cooler climates, consider using black plastic mulch to warm the soil before planting. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'
How to Sow and Plant
Sow seeds 1 to 1.5 inches deep in rows spaced 30–36 inches apart. Plant seeds 8 to 12 inches apart within the row. For optimal pollination, plant in blocks of at least four rows rather than single rows. Thin seedlings to the strongest plant per spacing after emergence.
How to Grow
Maintain consistent soil moisture, especially during tasseling and ear development. Fertilize with a nitrogen-rich organic fertilizer when plants are knee-high and again when they begin to tassel. Hill soil around the base of plants to provide support and prevent lodging. Monitor for pests and diseases regularly.
How to Save
- Corn is wind pollinated and will easily cross with other varieties (including GMO corn!). You will need at least 1 mile of isolation to avoid cross pollination. You can also use staggered timing or caging techniques.
- Hand pick ears when fully dried on stalk. Seeds keep best if left on the ear; just remove at planting time.
- Sweet corn seeds will remain viable for 2 years; dent corn will last up to 5 years when properly stored in an airtight container.
FAQ
Is Northern Lights corn edible?
Yes, Northern Lights corn is edible. As a flint corn, it has hard kernels suitable for grinding into cornmeal or making hominy. It's not typically eaten fresh like sweet corn.
Can I grow Northern Lights corn in containers?
Growing Northern Lights corn in containers is challenging due to its height and pollination needs. If attempting, use large, deep containers and plant in blocks to facilitate pollination.
Why are my Northern Lights corn kernels not developing properly?
Poor kernel development often results from inadequate pollination. Ensure plants are grown in blocks rather than single rows to enhance wind pollination. Hand-pollination can also improve kernel set.
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