1# EARLY XSWEET NORTHERN 67DAY

Early Extra Sweet Northern 67‑Day Sweet Corn (Zea mays) is a very early‑maturing, extra‑sweet yellow corn bred specifically for short growing seasons and cooler northern climates.

🌽 Variety Overview

• Type: Extra‑sweet (often se or se+) yellow sweet corn

• Days to Maturity: ~67 days (very early)

• Plant Height: 5–6 feet (shorter than full‑season corn)

• Ear Size: 6–7 inches

• Kernel Rows: 12–14

• Flavor: Very sweet, tender kernels

• Use: Fresh eating, early-season harvest

✅ Why Grow Early Extra Sweet Northern

• Extremely early harvest—ideal for short seasons

• Performs well in cooler soils than many sweet corns

• Sweet, tender kernels despite fast maturity

• Shorter plants resist lodging in wind

• Great for northern gardens and early succession plantings

This variety is especially well‑suited for northern Michigan and other cool‑season regions.

🌤️ Growing Conditions

• Season: Warm‑season crop

• Sun: Full sun (8+ hours)

• Soil: Fertile, well‑drained soil

• Soil pH: 6.0–6.8

• Planting Soil Temperature: ≥55–60°F

✔️ More tolerant of cool conditions than later sweet corns.

🌾 Planting Instructions

• When to Plant:

  • After last frost once soil reaches at least 55–60°F

  • Excellent candidate for early planting in northern areas

• How to Plant:

  • Depth: 1–1½ inches

  • Spacing: 10–12 inches apart

  • Rows: 30–36 inches apart

🌽 Plant in blocks of 4 or more rows for good wind pollination.

🚫 Isolation Needed:
Keep isolated from:

• Field corn

• Popcorn

• Different sweet corn types
  to prevent cross‑pollination.

💧 Care & Feeding

• Water consistently, especially during tasseling and ear fill

• Side‑dress with compost or balanced fertilizer at knee‑high stage

• Weed early—corn seedlings don’t compete well

🌽 Harvesting

• Harvest when silks turn brown and ears feel full

• Kernels should release milky juice when punctured

• Pick early morning for best sweetness

• Use immediately or refrigerate promptly

🍴 Kitchen & Storage

• Best eaten fresh due to extra sweetness

• Earlier varieties don’t hold sweetness as long as super‑sweet types—harvest promptly

• Excellent for early summer meals

🌿 Companion Plants

• Beans (help fix nitrogen)

• Squash or pumpkins

• Cucumbers

(Avoid tomatoes.)