Corn Seeds,
Fisher's Earliest Sweet

Sow Fisher's Earliest sweet corn seeds directly outdoors when soil temperatures reach about 60 degrees F, after all danger of frost is past. The ideal temperature for optimal growth is 75-80 F. This variety takes about 70 days to mature, depending on the variety and growing conditions. Using a soil thermometer can help ensure the soil is warm enough for planting. In cooler climates, black plastic can be used 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.'

Direct sowing is recommended for Fisher's Earliest sweet corn. Plant seeds 1 to 2 inches deep, spaced 3 to 4 inches apart, in rows 24 to 30 inches apart. Thin seedlings to about 12 inches apart once they are a few inches tall. Planting in blocks of at least four rows ensures better pollination, as corn relies on wind to spread pollen. Ensure good soil fertility by adding compost and nitrogen-rich fertilizers during planting. Succession planting prolongs harvest.

Consistent watering is essential, particularly during key growth stages. Corn requires about 1 to 1.5 inches of water per week. Mulching can help conserve moisture and reduce weed growth. corn is a heavy feeder, so apply a balanced fertilizer regularly. Be mindful of pests like corn earworms and aphids, and use organic pest control methods as needed. Diseases such as common smut and leaf rust can be mitigated by ensuring good air circulation and practicing crop rotation​​.

• 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.