50 Blue Corn Heirloom Seeds – Rare Sweet Maize Variety for Planting

Blue Corn is a rare heirloom sweet maize variety prized for its striking deep blue-purple kernels and sweet, tender flavor. This open-pollinated corn adds visual interest to the garden and is a favorite among growers who appreciate unique heirloom vegetables. The tall stalks produce ears filled with colorful kernels that are sweet when harvested young, making them ideal for fresh eating, roasting, or grinding into flour.

Whether you are a seed saver, a home gardener looking to add diversity to your vegetable patch, or a culinary enthusiast seeking distinctive ingredients, Blue Corn is a rewarding choice. It grows vigorously in full sun and well-drained soil, and its dramatic color makes it a standout in any garden or ornamental corn planting.

Plant Features

• Heirloom sweet corn variety with deep blue-purple kernels
• Sweet flavor when harvested at the milk stage
• Tall stalks that can reach 6-8 feet under ideal conditions
• Open-pollinated and suitable for seed saving
• Dual-purpose: edible and ornamental

Growing Information

• Botanical Name: Zea mays
• Plant Type: Annual
• Sunlight: Full sun
• Soil: Well-drained, fertile soil
• Water Requirements: Moderate; keep soil consistently moist
• Growth Habit: Upright, tall stalks
• USDA Hardiness Zones: 3-11 (grown as an annual)
• Bloom Season: Summer
• Mature Height: 6-8 feet
• Germination Requirements: Soil temperature at least 60°F (15°C)
• Spacing: 8-12 inches between plants, 30-36 inches between rows

Planting & Care

Sow Blue Corn seeds directly outdoors after the last frost date, when the soil has warmed to at least 60°F. Plant seeds 1 inch deep and 8-12 inches apart in rows spaced 30-36 inches apart. Corn is wind-pollinated, so plant in blocks of at least four rows for good pollination. Keep the soil consistently moist during germination and throughout the growing season, especially during tasseling and ear development.

Blue Corn benefits from a side dressing of nitrogen fertilizer when plants are about 12 inches tall. Control weeds early by shallow cultivation, being careful not to disturb the shallow root system. Harvest ears when the silks turn brown and the kernels are plump and release a milky liquid when pressed. For ornamental use, allow ears to dry on the stalk.

What's Included

50 Blue Corn Heirloom Seeds