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Our Products: Bicolor Sweet Corn Seeds
Signature XR Sweet Corn Seed
Signature XR Sweet Corn Seed

Signature XR Sweet Corn Seed

Price: $3.99

Quick Facts:

  • Packet Contains: 75 seeds
  • Days to Harvest: 72
  • Seed Color: Bicolor
  • Seed Type: Sh2 Hybrid
Plant Features

Signature XR sweet corn is known for its exceptional eating quality and excellent field holding ability. Produces 7 1/2" to 8" ears with high sugar content.


Sweet Corn Sowing Guide


Outdoor Sowing (Directly in the Garden)

  • Timing: Sow sweet corn seeds outdoors once the soil has warmed up to at least 60°F, typically in late spring, after the last frost date.
  • Location: Choose a sunny spot with at least 6–8 hours of direct sunlight daily. Corn benefits from rich, well-draining soil.
  • Soil Preparation: Loosen the soil to a depth of 8–10 inches, incorporating compost or well-rotted manure to improve fertility and drainage. Sweet corn is a heavy feeder and will benefit from nutrient-rich soil.
  • Planting Seeds:
    • Sow seeds about 1 inch deep, spacing them 8–12 inches apart in rows.
    • For optimal pollination, plant in blocks (multiple short rows) rather than a single long row.
  • Thinning: Once seedlings reach 3–4 inches in height, thin to about 12 inches apart if needed, to allow each plant enough space for growth and reduce competition.
  • Watering: Keep the soil consistently moist until germination, which typically takes 7–10 days. Once plants are established, water deeply, providing about 1 inch of water per week, especially during dry spells and when plants begin to tassel.

Indoor Sowing (Starting Seeds Indoors)

  • Timing: Corn is usually sown directly outdoors, but if starting indoors, begin 2–3 weeks before the last frost date to avoid extended indoor growth.
  • Containers: Use deep pots or biodegradable pots to prevent root disturbance during transplanting.
  • Planting:
    • Sow seeds 1 inch deep, placing 1 seed per pot.
    • Cover lightly with soil mix and water gently.
  • Germination:
    • Keep temperatures around 70–75°F for optimal germination.
    • Expect seedlings to emerge within 5–7 days.
  • Thinning: Not required for indoor sowing if only one seed per pot.
  • Transplanting: Transplant seedlings outdoors once soil temperatures reach 60°F and all risk of frost has passed. Plant seedlings 12 inches apart, spacing rows 30–36 inches apart to ensure adequate airflow.

General Care Tips for Sweet Corn

  • Sunlight: Provide full sun with at least 6 hours of direct sunlight daily.
  • Watering: Water deeply and consistently, aiming to keep soil evenly moist, especially during flowering and ear formation. Mulch around plants to retain soil moisture and suppress weeds.
  • Fertilizing: Corn is a heavy feeder; apply a balanced fertilizer when planting and side-dress with nitrogen fertilizer when plants reach 12 inches in height and again when they start to tassel.
  • Weeding: Keep the area around corn free of weeds, which can compete for nutrients and water. Mulching helps reduce weed growth and maintain soil moisture.
  • Pollination: Sweet corn is wind-pollinated. For best results, plant in blocks rather than single rows to encourage cross-pollination, ensuring well-filled ears.
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