How to Grow Corn 'Silver Queen'
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Corn 'Silver Queen'
Zea mays subsp. mays 'Silver Queen'
vegetable'Silver Queen' is a classic sweet corn variety known for its exceptional sweetness, tender kernels, and pure white color. This open-pollinated heirloom cultivar has been a favorite home gardener choice since its introduction in the 1950s. It produces tall stalks with large, full ears ideal for fresh eating and freezing.
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Example Corn 'Silver Queen' timeline · Pittsburgh, PA (Zone 6b)
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Plant Corn 'Silver Queen'
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Corn 'Silver Queen'
Around Jul 6≈ 80 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Zones 3-9; best production in zones 4-8 with warm summers
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Germination & Seedling
7-14 daysCorn kernels sprout and emerge above soil with first true leaves unfurling; seedlings are upright with waxy coating on leaves.
Keep soil consistently moist but not waterlogged. Thin seedlings to proper spacing once they have 2-3 true leaves. Protect from birds and cutworms with row covers.
Vegetative Growth
30-40 daysPlant produces multiple sets of leaves and develops a robust root system; stalks grow rapidly and reach 6-8 feet tall for Silver Queen.
Provide consistent water and nitrogen fertilizer every 2-3 weeks. Mulch around plants to retain moisture and suppress weeds. Hill soil around base for stability. Monitor for pests.
Tasseling & Silking
7-10 daysMale flowers (tassels) emerge from top of stalk; female flowers (silks) protrude from developing ears. This is the critical pollination period.
Ensure consistent, ample water (most critical stage for water needs). Avoid nitrogen overfeeding which can reduce pollination. Do not disturb tassels or handle plants unnecessarily. Watch for European corn borers.
Kernel Development & Milky Stage
15-20 daysEars fill with developing kernels; silks dry back and turn brown as kernels mature. Squeeze test shows kernels filled with milky liquid.
Maintain consistent moisture to prevent shallow kernels and tip sterility. Continue monitoring pest pressure. Side-dress with compost if plants show nutrient deficiency. Peak sugar content occurs at end of this stage.
Maturity & Harvest-Ready
Variable; optimal 2-3 week harvest windowKernels are full, bright white, and firm but tender; silks are completely brown and dry; ears feel full when squeezed.
Check ears daily once silks brown; harvest at peak sweetness (sugar converts to starch after maturity). Cool ears immediately after harvest. Plan succession plantings 2 weeks apart for continuous harvest.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use Bt (Bacillus thuringiensis) spray at tasseling; plant resistant varieties; remove and destroy infested ears; practice crop rotation
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Apply mineral oil or Bt to ear tips when silks emerge; handpick larvae; use pheromone traps; maintain good garden sanitation
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Scout regularly; use Bt spray; remove affected plant parts; encourage parasitic wasps; apply neem oil
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Spray with insecticidal soap or neem oil; encourage beneficial insects (ladybugs, lacewings); use reflective mulches
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Handpick in early morning; use row covers; apply neem oil; avoid traps near garden (attracts more beetles)
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Remove and destroy galls before they rupture; ensure good air circulation; avoid overhead watering; plant resistant varieties
Uses
Fresh corn on the cob
CulinarySilver Queen is renowned for its exceptional sweetness and tender kernels, making it ideal for boiling, grilling, or roasting fresh corn on the cob. Its white kernels and mild flavor pair well with simple butter and salt preparations. [source]
Freezing and preservation
CulinaryThe high sugar content and firm kernel structure of Silver Queen make it excellent for blanching and freezing whole kernels or cob for winter use. Properly frozen ears maintain quality for up to 8-10 months. [source]
Cornmeal and flour production
HouseholdMature kernels can be dried and ground into cornmeal for polenta, breading, and baking. While sweeter varieties like Silver Queen aren't ideal dent corn, they still produce usable meal and flour. [source]
Wildlife food source
WildlifeMature dried kernels attract birds, squirrels, and other wildlife. Cornstalks and cobs provide habitat and food for beneficial insects and ground-foraging birds. [source]
Decorative dried corn
CraftAllow some ears to fully mature and dry for fall and holiday decorations, dried arrangements, and craft projects using cobs and husks. [source]
Harvest Tips
Harvest when ears feel full and plump, silks are brown and dry, and kernels release milky liquid when punctured (20-24 days after silking). Pick ears early in morning for maximum sweetness. Hold stalk firmly and pull ear downward with a twisting motion. Use immediately or refrigerate; sugar converts to starch over time, so eat within 1-2 days for peak flavor. For small quantities, harvest continuously to encourage plant productivity.
Fun Facts
- 🌱 Silver Queen was introduced by the Northrup King Company in the 1950s and became one of the most popular home garden sweet corn varieties, winning extensive praise for its exceptional sweetness and pure white color.
- 🌱 The kernels of Silver Queen contain higher sugar content at harvest (up to 16-18 Brix) compared to traditional field corn, but sugar begins converting to starch immediately after harvest, which is why it tastes best eaten within hours of picking.
- 🌱 Corn is a heavy nitrogen feeder and a key component of the Three Sisters polyculture with beans and squash—the beans fix nitrogen for the corn, the corn stalks support the beans, and the squash shades the soil to retain moisture and suppress weeds.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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