A Cornucopia in Your Garden: A Comprehensive Guide on How to Grow Corn

Posted on Categories:"How To Grow", Edible Plant Growing Information
How to Grow Corn

How to Grow Corn

Corn, with its golden cobs and tall stalks, is a staple in gardens around the world. Whether you’re aiming for sweet corn on the dinner table or seeking the joy of cultivating this iconic crop, growing corn is an exciting and rewarding experience. In this comprehensive guide, we’ll take you through the step-by-step process of how to grow corn, covering everything from selecting the right variety to caring for your plants and harvesting the ears of corn.

1. Selecting the Right Corn Variety

Corn comes in various varieties, each with its unique characteristics. Common types include:

  • Sweet Corn: Known for its tender kernels and sweetness, sweet corn is a popular choice for fresh eating.
  • Popcorn: Grown for its ability to pop into delicious popcorn snacks.
  • Field Corn: Primarily used for animal feed, ethanol production, and various industrial purposes.

Choose the corn variety based on your intended use and the available space in your garden.

2. Timing for Planting Corn

Timing is crucial when it comes to planting corn:

  • Warm Soil: Corn thrives in warm soil, so wait until after the last frost date in your area.
  • Soil Temperature: Plant corn seeds when the soil temperature is consistently above 50°F (10°C).

3. Soil Preparation for Corn

Preparing the soil is a vital step in growing healthy corn plants:

  • Well-Draining Soil: Corn prefers well-draining soil rich in organic matter.
  • Soil pH: Aim for a slightly acidic to neutral pH, typically between 6.0 and 7.0.

4. Planting Corn Seeds

Proper planting ensures strong and uniform corn plants:

  • Planting Depth: Plant corn seeds about 1 to 1.5 inches deep.
  • Spacing: Allow for adequate spacing between rows, typically 30 to 36 inches apart.
  • Seed Placement: Plant multiple seeds together in hills or rows, and thin them later to the strongest seedlings.

5. Sunlight Requirements for Corn

Corn is a sun-loving crop that requires full sunlight:

  • Sun Exposure: Plant corn in an area that receives at least 8 hours of direct sunlight daily.

6. Watering Routine for Corn

Proper watering is essential for successful corn growth:

  • Consistent Moisture: Corn requires consistent moisture, especially during the tasseling and silking stages.
  • Avoid Overhead Watering: Water at the base of the plants to prevent diseases.

7. Fertilizing Corn

Corn is a heavy feeder and benefits from adequate fertilization:

  • Nitrogen Requirement: Corn requires a significant amount of nitrogen. Apply a balanced fertilizer or supplement with nitrogen during the growing season.

8. Companion Planting with Corn

Companion planting can benefit corn by promoting biodiversity and deterring pests:

  • Three Sisters Planting: Consider the traditional Native American method of planting corn, beans, and squash together. The beans provide nitrogen, while the squash shades the soil, reducing weed growth.

9. Thinning Corn Seedlings

Thinning is crucial for ensuring healthy corn plants:

  • Thin to Strongest Plants: Once the corn plants reach a few inches in height, thin them to leave only the strongest plants in each hill.

10. Mulching for Weed Control

Mulching helps control weeds and retain soil moisture:

  • Apply Mulch: Use organic mulch, such as straw, around corn plants to suppress weeds and conserve moisture.

11. Tasseling and Pollination in Corn

Understanding the tasseling and pollination process is essential for a successful corn harvest:

  • Tasseling Stage: The tassels appear at the top of the corn plants.
  • Silking Stage: Silks emerge from the ears. Each silk connects to a potential kernel.
  • Wind or Pollination Bags: Corn is wind-pollinated, but if your garden is in a sheltered location, consider using pollination bags to ensure proper pollination.

12. Protecting Corn from Pests and Diseases

Corn can face challenges from pests and diseases:

  • Common Pests: Monitor for pests like corn earworms and European corn borers. Insecticidal treatments may be necessary.
  • Disease Prevention: Proper spacing and crop rotation help prevent common corn diseases. Fungicides can be applied preventively.

13. Harvesting Corn

Knowing when and how to harvest corn ensures the best flavor and texture:

  • Harvest Time: Sweet corn is ready for harvest when the silks are brown, and the kernels release a milky liquid when punctured.
  • Hand Harvest: Twist each ear of corn downward and pull it from the stalk.

14. Storing and Using Corn

Proper storage allows you to enjoy your corn harvest beyond the growing season:

  • Immediate Use: For the best flavor, use corn immediately after harvesting.
  • Freezing Corn: Corn can be blanched and frozen for later use. Remove the kernels from the cob before freezing.
  • Canning: Corn can also be canned for long-term storage.

15. Crop Rotation for Corn

To maintain soil health, practice crop rotation:

  • Rotate Crops: Avoid planting corn in the same location every year. Rotate with other crops to reduce the risk of diseases and pests.

16. Saving Corn Seeds

If you want to save corn seeds for the next planting season:

  • Open-Pollinated Varieties: Save seeds from open-pollinated varieties. Hybrid varieties may not produce true-to-type seeds.
  • Drying Seeds: Allow corn ears to fully mature on the stalk, then air dry them before removing the kernels for storage.


Growing corn is an adventure that takes you from the anticipation of seed planting to the satisfaction of harvesting golden ears. From selecting the right variety and providing proper care to dealing with potential pests and diseases, each step contributes to a successful corn-growing experience. So, roll up your sleeves, plant some corn, and relish in the joy of cultivating this iconic crop in your garden. Happy corn growing!