Corn Seeds,
Sehsapsing Delaware Black Flint

Plant Sehsapsing Delaware Black flint corn when soil temperatures reach about 60 degrees F, after all danger of frost is past. It typically matures in about 90 days, making it suitable for various growing climates, including those with shorter seasons. Make sure to check local frost dates to time your planting correctly. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

Direct sow seeds 1-2 inches deep and 6-12 inches apart in rows that are 2-3 feet apart. For effective pollination, plant in blocks of at least three to five short rows rather than one or two long rows. Thin seedlings to about 12 inches apart once they reach a few inches in height. Keep the soil moist but not waterlogged during germination, which usually takes 7-10 days​. Succession plant for prolonged harvest.

Maintain regular watering, especially during critical growth stages such as tasseling and ear formation. Corn is a heavy feeder, so side-dress with compost or a balanced organic fertilizer when plants are about knee-high. Practice crop rotation to maintain soil health and avoid pest buildup. Companion planting with beans and squash can also be beneficial​.

• 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.