Corn Growing Guide

All you need to know to grow successfully!

Plant Family:
Plant Type:

Square Foot Spacing:

Typical Season:
Warm season
Typical Zones Grown In:
4, 5, 6, 7, 8
Growing Difficulty:

Corn, also known as maize, is a cereal crop that is widely cultivated for its edible kernels. It is a staple food in many parts of the world, and is used in a variety of dishes, including tortillas, cornbread, and popcorn. Corn is a warm-season crop that requires a long growing season and plenty of sunshine. It prefers well-drained soil and adequate moisture. There are many different varieties of corn, including sweet corn, popcorn, and field corn. Sweet corn is the most commonly grown variety for human consumption, while field corn is primarily used for animal feed and industrial purposes. When harvesting sweet corn, it’s best to pick it when the kernels are plump and tender for optimal flavor. Corn is a popular crop for home gardeners who want to grow their own food, but it can also be grown on a large scale for commercial use.

How to Grow Corn Organically

Here is a brief guide on how to grow corn organically:

  1. Soil preparation: Corn prefers well-drained soil that is rich in organic matter, so amend the soil with compost or well-rotted manure before planting. The soil pH should be between 6.0 and 7.0.
  2. Planting: Corn should be planted in blocks or rows to ensure proper pollination. Wait until the soil temperature reaches 60°F (15°C) before planting. Plant the seeds 1-2 inches deep and 4-6 inches apart in rows that are spaced 30-36 inches apart.
  3. Watering: Corn needs consistent moisture to grow properly, so water deeply and regularly. It’s best to water in the morning to allow the leaves to dry before evening.
  4. Fertilizer: Use an organic fertilizer that is high in nitrogen to promote leafy growth. Apply the fertilizer when the corn is knee-high and again when it’s shoulder-high.
  5. Pest control: Corn is susceptible to pests such as corn borers, earworms, and armyworms. Use organic methods to control these pests, such as beneficial insects, row covers, and neem oil.
  6. Harvest: Corn is ready to harvest when the kernels are plump and release a milky juice when pierced. Pick the ears as soon as possible after harvest to ensure the best flavor and texture.

By following these steps, you can successfully grow corn organically and enjoy a bountiful harvest of this delicious and nutritious vegetable.

Planting Guidelines

The following are general guides to follow. However, nothing is set in stone. Feel free to experiment!

How to Start:
Direct Sow
When to Direct Sow:
May, June
When to Start Indoors:
Sprouting Time:

Ideal Temperature (C):

2-5cm deep
Spacing (cm):
8 cm
Row Spacing (cm):
20-25cm (8-10″)
Sun Exposure:
Full Sun
Maturity Time:
80-90 days
When To Harvest:
August, September
How to Harvest:
Harvest when silks are brown and dry, the ears are large and start to pull away from the plants

Health Benefits

Growing your own food is one of the best things you can do for your health. Let’s check out some of the health benefits!

Is It Edible?
Edible Parts:
Corn kernels
Potential Health Benefits:
Eye Health, Digestive System, Mineral Dense

Tips to Growing Organically

Growing without the use of pesticides and herbicides is easier than you may think and it’s better for the environment!

Companion Plants:
Bean, Beet, Cucumber, Dill, Parsley, Pea, Potato, Squash, Sunflower
What Plants to Avoid:
Celery, Tomato
Common Pests:
Loopers, Nematodes
Common Disease:
Prevent disease and nutritional exhaustion of the soil by using 4-year crop rotation and composting old stalks.
Bonus Grow Tips:
Corn is a heavy feeder, so add manure or compost, and use 500g (1 lb) of complete organic fertilizer per 6m (60′) of row, mixing it thoroughly into the soil beneath each seed furrow.

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