When to Plant Potatoes in Idaho

Potatoes are a staple crop in Idaho, with the state producing around 30% of the nation's total potato yield. If you're a potato grower in Idaho, timing the planting of your potatoes is crucial to ensure a successful yield. In this article, we'll go over when to plant potatoes in Idaho and some tips to help you get the best possible harvest.

Choosing the Right Time to Plant

The ideal time to plant potatoes in Idaho depends on several factors, including the variety of potatoes you'll be planting and the weather conditions in your area. Generally, it's best to plant potatoes in the early spring, as soon as the soil temperature reaches a minimum of 40掳F (4.4掳C).

Planting too early, however, can be risky as the potatoes are susceptible to frost damage. You should avoid planting before the last frost date in your area. In Idaho, the average last frost date falls between May 10th and May 20th. Therefore, it's recommended to plant potatoes in late April or early May to avoid the risk of frost.

Some potato varieties can tolerate cooler soil temperatures, making them a good option for early planting. Examples of early planting potato varieties include Red Pontiac, Yukon Gold, and Early Rose potatoes.

Tips for Planting Potatoes in Idaho

1. Soil Preparation: Potatoes require a well-draining soil with a pH level between 4.8 and 5.5. Idaho's soil is naturally acidic, which makes it an excellent soil for potato cultivation. However, it's still important to conduct a soil test to ensure that the soil pH level is within the recommended range.

2. Seed Preparation: Before planting, it's recommended to cut seed potatoes into smaller pieces, each containing at least one "eye" (a small depression that will sprout). This will encourage multiple shoots to appear, resulting in a better crop yield.

3. Planting Procedure: Plant seed potatoes in rows, two to three inches deep, and one to two feet apart. Cover the seed potatoes with soil and water them immediately. As the potato plants grow, mound soil around them to prevent the potatoes from poking out of the ground and turning green.

Conclusion

Knowing when to plant potatoes in Idaho is crucial to ensure a successful crop yield. In general, it's best to plant potatoes in late April or early May when the soil temperature reaches at least 40掳F (4.4掳C). By following the tips outlined in this article, you can ensure that your potatoes grow strong and healthy and produce a bountiful harvest. Happy planting!