How Do You Plant Sweetcorn?

Written by: Lars Nyman

Growing Sweetcorn

Growing Sweetcorn

Discover the joy of growing your own Sweetcorn with our step-by-step guide on "How Do You Plant Sweetcorn?". This comprehensive tutorial will provide you with invaluable tips on how to get the most out of your sweetcorn crops. From choosing the best sweetcorn seeds to understanding the specific growing conditions, this article is a must-read for seasoned gardeners and beginners alike. Not only will this guide make the process of planting and maintaining your sweetcorn far simpler, but it will also make it much more rewarding. So, whether you're planning a self-sufficient vegetable patch or simply want to diversify your gardening skills, continue reading to find out how to cultivate this delicious, healthy, and versatile vegetable successfully.

Sweetcorn Planting Cheatsheet

Planting Time

Plant sweetcorn in late spring or early summer.


Plant seeds 12-18 inches apart in rows that are 2-3 feet apart.

Soil Prep

Ensure well-drained soil with organic matter for optimal growth.


Sweetcorn needs full sun exposure for at least 6-8 hours a day.


Keep soil moist but not waterlogged, approximately 1 inch of water per week.

Pest Control

Protect from common pests like birds, raccoons, and raccoons with nets or fences.


Apply a balanced fertilizer high in nitrogen every 3-4 weeks.

Harvest Time

Pick sweetcorn when kernels are plump and milky, usually within 20-25 days.

Health Benefits

Sweetcorn is rich in vitamins A and C, antioxidants, and dietary fiber.


Grow your own sweetcorn and reduce reliance on store-bought produce.

Did You Know?

  • One ear of sweetcorn can have up to 400 kernels.
  • Sweetcorn is a popular ingredient in Mexican cuisine.
  • Some varieties of sweetcorn can grow up to 10 feet tall.

Planting Sweetcorn - It's Easier Than You Think!

If you're looking for a delicious and nutritious summer treat, planting sweetcorn is a great option. If you're a beginner gardener or just looking to learn how to plant sweetcorn, you've come to the right place! Planting sweetcorn has never been easier, and with a few simple steps, your sweetcorn crop will be ready for harvest.

Step 1: Test The Soil

The first step in planting sweetcorn is testing the soil. The soil should be well-drained and have a pH between 5.8 and 7.0. Soil with a higher sand content provides ample amounts of oxygen for the plant roots, and a rich organic content is also beneficial. You can use an inexpensive soil testing kit bought from your local garden centre to check the pH level.

Step 2: Prepare The Soil

Once you know the soil is suitable, you need to prepare the area for planting. If the soil is not well drained, you may need to add compost or sand to the area. Loosen the soil to make a bed for the sweetcorn plants. Make sure you remove all weeds and stones from the area, and spread a balanced organic fertiliser in the planting bed.

Step 3: Plant The Seeds

When the soil is ready, you can begin planting your sweetcorn. Sweetcorn requires a lot of space to grow and develop, so plant the seeds in a bed spaced at least 18-24 inches apart. Plant the seeds around 1-2 inches deep into the soil and water generously. In order to ensure pollination, it's best to plant the sweetcorn in "blocks" of four or more rows.

Step 4: Care For The Plants

Once the sweetcorn plants have germinated, they need regular watering, fertilizer, and weeding. Water the plants deeply, but not too frequently, as this can cause disease or weaken the plant. Apply a balanced organic fertilizer every month, and make sure to remove any weeds that compete with the sweetcorn for nutrients.

Step 5: Monitor The Plants

The sweetcorn plants will grow quickly, so it is important to monitor them for any signs of disease or pest infestation. If necessary, use an organic pesticide to rid the plants of any pests. As the plants begin to mature, check for the telltale silks of the sweetcorn ears, which will indicate when the crop is ready for harvest.


1. When is the best time to grow sweetcorn?

The best time to plant sweetcorn is in late spring or early summer.

2. What kind of soil does sweetcorn need?

Sweetcorn thrives in well-drained soil with rich organic matter.

3. How deep should I plant sweetcorn seeds?

Plant sweetcorn seeds about 1-2 inches deep in the soil.

4. How far apart should I space my sweetcorn plants?

Space sweetcorn plants about 12-18 inches apart to allow proper growth.

5. Does sweetcorn require regular watering?

Water sweetcorn regularly, ensuring the soil is consistently moist.

6. How long does it take for sweetcorn to grow?

Sweetcorn typically takes around 70-90 days to reach maturity.

7. Should sweetcorn be planted in full sun?

Grow sweetcorn in an area with full sun exposure for optimal growth.

8. How can I prevent pests from damaging my sweetcorn?

Implement natural pest control methods such as companion planting or using insect-repelling plants.

9. When is sweetcorn ready to harvest?

Sweetcorn is ready to harvest when the kernels are plump and milky.

Growing sweetcorn is a rewarding experience and can provide an abundance of delicious, crunchy, and sweet fruits for months. To maximize success, it is important to prepare the soil well beforehand, choose a sunny spot and carefully follow planting instructions so that the seeds germinate in the optimum environment. With a little patience and some TLC, you should have a bountiful harvest in no time!

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