When to Plant Out Tomatoes in Polytunnel

If you are planning to grow tomatoes in a polytunnel, it is essential to know when to plant them out. Tomatoes require warm temperatures and a long growing season to produce an abundant crop. In this article, we will discuss the factors that affect the planting time for tomatoes and provide you with tips on when to plant out tomatoes in a polytunnel.

Factors affecting the Planting Time for Tomatoes

There are several factors that you need to consider before planting tomatoes out in a polytunnel. These factors include:

1. Soil Temperature: Tomatoes require warm soil temperatures to thrive. The ideal soil temperature for planting tomatoes is around 60°F to 65°F. If the soil temperature is too cold, the plants will not grow or may even die. Therefore, it is important to check the soil temperature before planting tomatoes out.

2. Air Temperature: Tomatoes also require warm air temperatures to grow properly. The ideal air temperature for tomato growth is between 70°F to 85°F. If the temperature falls below 50°F, the plants will not grow, and their growth will be impaired. Therefore, it is important to take note of the air temperatures in your area before planting out tomatoes.

3. Frost: Tomatoes are sensitive to frost, and their growth can be severely affected if exposed to frost. Therefore, it is important to plant tomatoes out after the last frost date in your area.

Tips on When to Plant Out Tomatoes in a Polytunnel

Now that you know the factors that affect the planting time for tomatoes, here are some tips on when to plant out tomatoes in a polytunnel:

1. Check the Soil Temperature: It is essential to check the soil temperature before planting out tomatoes in a polytunnel. If the soil temperature is below 60°F, wait until it warms up to the ideal temperature before planting.

2. Plan Around the Last Frost Date: Tomatoes are sensitive to frost, so it is important to plan around the last frost date in your area. If the last frost date in your area is in late April, you can start planting tomatoes out in mid-May.

3. Monitor the Air Temperatures: Tomatoes require warm air temperatures to grow properly. Therefore, it is essential to monitor the air temperatures in your area and plant out tomatoes when the air temperature is consistently above 50°F.

4. Harden off the Seedlings: Before planting out tomato seedlings in a polytunnel, it is crucial to harden them off. You can do this by gradually exposing them to outdoor conditions, starting with a few hours a day and gradually increasing the time over a week or two.

5. Maintain Optimal Growing Conditions: To ensure the success of your tomato crop in a polytunnel, it is important to maintain optimal growing conditions. This includes providing adequate water, fertilization, and pest control.

Conclusion

Tomatoes require warm temperatures and a long growing season to produce an abundant yield. It is essential to consider the factors that affect the planting time for tomatoes, such as soil and air temperatures and frost. By following these tips, you can ensure that your tomato crop in a polytunnel thrives and produces a bountiful harvest.