How to Grow Candy (Corn)
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Candy (Corn)
Zea mays var. saccharata
vegetableSweet corn is a specialty variety of maize bred for high sugar content and tender kernels, making it ideal for fresh eating. The stalks grow tall with large leaves and produce ears filled with sweet, milky kernels. It's a warm-season crop that requires full sun and consistent moisture for optimal sweetness.
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Example Candy (Corn) timeline · Pittsburgh, PA (Zone 6b)
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Plant Candy (Corn)
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 Candy (Corn)
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Candy (Corn) dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; can be grown in zones 2 and 10 with careful timing
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Get my Candy (Corn) timeline →Growth Stages
Germination & Seedling
2-3 weeksSeed germinates in 7-10 days. Single shoot emerges with first true leaf appearing within 2-3 weeks. Plant is vulnerable to pests and soil crusting.
Ensure consistent soil moisture. Thin seedlings to proper spacing if direct seeding. Protect from birds and cutworms with row covers.
Vegetative Growth
3-4 weeksPlant rapidly produces leaves and increases height. Roots deepen and spread. Plant reaches 2-4 feet tall with 6-10 leaves visible by this stage.
Fertilize at 4-6 weeks with nitrogen-rich fertilizer. Side-dress or use liquid feeding. Mulch around base to retain moisture and suppress weeds. Watch for early pests.
Tasseling & Silking
1-2 weeksMale tassel develops at top of stalk (tasseling). Female silks emerge from ear nodes 1-2 weeks later. This is the most critical stage for pollination and kernel development.
Maintain consistent, even moisture—critical during this stage. Avoid nitrogen excess (causes leafy growth at expense of grain). Ensure adequate phosphorus and potassium. Pollination occurs naturally via wind.
Ear Development & Milking
2-3 weeksKernels fill out and develop milky liquid inside (milk stage). Silks brown and dry. Ears reach full size. Kernels are plump, tender, and at peak sweetness.
Continue consistent watering through this stage. Avoid overwatering, which can dilute sweetness. Monitor for pest damage. Check ears regularly for readiness.
Harvest Readiness
3-5 days of harvest windowKernels are fully developed, tender, and sweet. Silks are brown and papery. Husk feels plump and moist. Kernels release milky juice when pierced with fingernail.
Harvest at peak ripeness for maximum sweetness. Early morning harvest is sweetest. Use kernels fresh or process immediately to lock in flavor and sugar content.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Apply Bt (Bacillus thuringiensis) spray at silking. Use pheromone traps. Plant resistant varieties. Handpick affected ears.
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Remove and destroy affected stalks. Apply Bt at whorl stage. Plant resistant varieties. Till soil in fall to destroy pupae.
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Spray with insecticidal soap or neem oil. Encourage beneficial insects. Use reflective mulches. Strong water spray dislodges aphids.
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Apply Bt spray. Handpick. Use pheromone traps. Maintain good field sanitation.
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Handpick early morning. Use traps away from plants. Apply neem oil. Encourage parasitic wasps.
Uses
Fresh eating and cooking
CulinarySweet corn kernels are prized for their natural sweetness and tender texture. Enjoy boiled, grilled, roasted, or raw in salads and salsas. [source]
Canning and freezing
CulinaryKernels can be blanched and frozen for year-round use, or canned for shelf-stable storage. Maintains flavor well when processed promptly after harvest. [source]
Cornmeal and flour
HouseholdDried corn can be ground into cornmeal for polenta, cornbread, and other baked goods. Provides fiber and B vitamins. [source]
Corn silk herbal tea
CulinaryDried corn silks can be steeped into a mild, slightly sweet tea traditionally used in some cultures for urinary and digestive wellness. [source]
Wildlife food source
WildlifeCorn provides food for birds and small mammals. Leaving some stalks standing in fall supports overwintering wildlife and adds garden structure. [source]
Harvest Tips
Harvest when silks are brown and papery, husk is fully green, and kernels release milky juice when pierced. Ear should feel plump and moist. Pick in early morning when sweetness is highest. Twist ear downward and pull to detach from stalk. Use fresh immediately or refrigerate up to 3 days for best flavor. Once picked, sugar converts to starch, so immediate cooking preserves sweetness.
Fun Facts
- 🌱 Sweet corn loses up to 25% of its sugar content within 24 hours of harvest as sugars convert to starch, which is why 'farm to table' sweetness is legendary.
- 🌱 Corn is a heavy feeder and uses more nitrogen than most vegetables; nitrogen encourages leafy growth but too much at tasseling reduces ear development.
- 🌱 Corn requires wind pollination—each kernel needs an individual pollen grain to develop, so planting in blocks rather than single rows improves pollination and kernel fill.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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