How to Grow Maize (Corn) - Supersweet Serendipity
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Maize (Corn) - Supersweet Serendipity
Zea mays subsp. mays
vegetableSupersweet Serendipity is a premium sweet corn variety with exceptional sugar content and tender kernels that retain their sweetness longer than standard varieties. This hybrid cultivar produces tall stalks with large ears and is prized for fresh eating and exceptional flavor. The kernels have higher fructose levels, making them noticeably sweeter and creamier than traditional corn.
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Example Maize (Corn) - Supersweet Serendipity timeline · Pittsburgh, PA (Zone 6b)
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Plant Maize (Corn) - Supersweet Serendipity
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 Maize (Corn) - Supersweet Serendipity
Around Jun 29≈ 73 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; requires warm soil (65°F+) for germination
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Get my Maize (Corn) - Supersweet Serendipity timeline →Growth Stages
Seedling
7-14 daysCorn emerges with a single leaf spike. Plants are 2-4 inches tall with 2-3 visible leaves.
Ensure consistent soil moisture. Thin seedlings to proper spacing (8 inches apart) within 2-3 weeks. Protect from cutworms with collars if needed.
Vegetative Growth
3-4 weeksRapid leaf development; plants grow 6-18 inches tall. Root system establishes deeply. The plant develops 8-12 leaves before tasseling begins.
Apply side-dressing of nitrogen fertilizer when plants are 12 inches tall. Monitor for pests. Maintain even moisture and weed regularly. Support with earthing up (hilling) soil around base.
Tasseling & Silking
2-3 weeksMale tassel emerges from top (6-8 feet tall). Female silks emerge from ear nodes 3-4 feet up. Silks are bright green to reddish.
Critical watering period—maintain 1.5 inches water weekly. Do not let soil dry out. Ensure good pollination with multiple rows. This stage determines ear quality and kernel number.
Kernel Development & Milk Stage
2-3 weeksSilks begin to brown. Kernels fill with milky fluid when squeezed. Ears feel full and plump. Green husks tighten around cob.
Continue consistent watering. Monitor for pest damage. Ears will feel slightly soft if squeezed gently. Avoid fertilizer now.
Dough to Full Maturity
1-2 weeksKernels transition from milk to dough consistency, then to full maturity with slight dent at crown. Husks dry and brown. Silks turn dark brown.
For supersweet varieties intended for fresh eating, harvest at milk to early dough stage for maximum sweetness. For storage/processing, allow kernels to firm up more.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Plant resistant varieties, use Bt (Bacillus thuringiensis) spray, introduce parasitic wasps, remove infested ears early, apply mineral oil to silks at peak lay-egg time
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Remove crop residue, use Bt sprays, plant resistant hybrids, release parasitic wasps, deep plow after harvest
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Use cardboard collars around seedlings, hand-pick at night, apply diatomaceous earth around plants, maintain garden hygiene
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Use Bt sprays at first sign of damage, hand-pick caterpillars, encourage beneficial insects, remove weeds where they hide
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Hand-pick early morning, use insecticidal soap, apply neem oil, install Japanese beetle traps away from crop
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Spray strong water stream to dislodge, use insecticidal soap, release ladybugs, plant trap crops like nasturtium
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Use row covers on young plants, hand-pick at dawn, apply spinosad or neem oil, maintain nearby habitat for birds
Uses
Fresh eating and cooking
CulinarySupersweet Serendipity corn is prized for eating fresh off the cob, steaming, grilling, or adding to salads and stir-fries. The high sugar and fructose content creates an exceptionally sweet, creamy flavor that persists longer than standard corn varieties. [source]
Corn products and preservation
CulinaryKernels can be frozen, canned, or made into corn chowder, corn bread, polenta, or corn meal. The superior sugar content makes it excellent for corn relish and preserves. [source]
Dried corn for decoration and animal feed
HouseholdMature kernels can be dried for decorative corn cobs and husks (fall arrangements), or ground into animal feed. The dried cobs have various household uses. [source]
Wildlife food and habitat
WildlifeCorn provides seed and grain for birds, squirrels, and other wildlife. Stalks and leaves offer cover and nesting material. Left-standing stalks provide winter habitat for beneficial insects. [source]
Corn silk herbal remedy
MedicinalDried corn silks (stigmas) have been used traditionally in herbal medicine as a diuretic tea for urinary tract health and fluid balance. Modern herbalists recommend corn silk tea for kidney support. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
For Supersweet Serendipity, harvest at the milk stage (approximately 20 days after silking) for peak sweetness and tender kernels. Ears are ready when husks are full and green, silks are brown, and kernels release milky juice when punctured. Grip firmly and twist the ear downward and back. Harvest in early morning when kernels are coolest for maximum sugar retention. Eat or process immediately—supersweet corn loses sweetness rapidly (up to 25% per day at room temperature). Refrigerate unwashed ears in husks until use.
Fun Facts
- 🌱 Supersweet corn varieties contain 2-3 times more sugar than standard yellow corn varieties due to mutations that reduce starch conversion to sugar. Some supersweet kernels remain sweet for weeks when refrigerated, unlike standard corn which converts sugar to starch rapidly.
- 🌱 A single corn plant can produce 1-3 ears depending on variety, growing conditions, and genetics. The tassel produces millions of pollen grains, and each kernel on an ear develops from an individual silk strand—one silk, one kernel.
- 🌱 Corn is a 'heavy feeder' requiring approximately 1 pound of actual nitrogen per 100 square feet throughout the season. It's one of the few crops that benefits from side-dressing fertilizer during active growth, unlike many vegetables.
Gardening Terms
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