When to Plant Tomatoes in Eastern Washington State

Tomatoes are a popular garden crop in eastern Washington state. They can be grown successfully in a variety of climates and soil types. However, the timing of when to plant tomatoes is crucial to ensure a healthy and productive harvest. In this article, we will examine the best time to plant tomatoes in eastern Washington state and provide tips for successful cultivation.

Climate Considerations

The climate of eastern Washington state is characterized by hot, dry summers and cold winters. The key to successfully growing tomatoes is to plant them during the warmest months when the soil temperature is consistently above 60 degrees Fahrenheit. In most areas of eastern Washington, this means planting tomatoes in late May or early June.

Before planting, it is important to prepare the soil. Tomato plants require well-drained soil that is rich in organic matter. Adding compost, aged manure or other organic matter to the soil can help improve its structure and fertility. It is also a good idea to have the soil tested to determine its pH level. Tomatoes grow best in soil with a pH between 6.0 and 7.0.

Choosing Tomato Varieties

When choosing tomato varieties for eastern Washington state, it is important to select early-maturing varieties that can ripen before the first frost. Some popular early-maturing varieties include Early Girl, Sungold, and Champion. These varieties typically take around 70 days to mature and produce medium to large-sized fruits.

If you prefer larger tomatoes, there are many mid-to-late season varieties that can be grown successfully in eastern Washington. Beefsteak, Cherokee Purple, and Brandywine are popular heirloom varieties that produce large, flavorful fruits. These varieties typically take around 80-90 days to mature and are well-suited to the long growing season of eastern Washington.

Planting Tips

When planting tomatoes, it is important to set them deep in the soil to encourage strong root growth. Dig a hole that is twice the size of the root ball and fill it partially with soil. Gently remove the tomato plant from its container and place it in the hole. Fill the hole with soil, leaving only the top few leaves exposed.

Tomatoes require regular watering to produce healthy fruits. Water deeply once a week, or more often during hot, dry periods. It is also important to mulch around the tomato plants to help retain moisture and suppress weeds.

Conclusion

Planting tomatoes in eastern Washington state requires careful consideration of climate, soil, and plant selection. By planting in late May or early June, selecting early-maturing varieties, and following proper planting and watering techniques, gardeners can enjoy a bountiful tomato harvest throughout the summer and early fall.