The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when to plant millet in Walla Walla by using the USDA zone info.

Planting Calendar for Millet

Frost tolerance for millet:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Millet do not do well in cold weather which tells us that it's necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant millet in Walla Walla is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant millet and expect a good harvest is probably August. Any later than that and your millet may not have a chance to fully mature. Starting your millet indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Walla Walla. In the coldest months of winter you can expect an average low temperature of 0°F.

Always keep in mind that USDA zone info for Walla Walla may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Walla Walla there is a last frost after April 15 so make sure that you are prepared to cover your millet if you have a surprise late frost.

USDA Zone Info for Walla Walla

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Walla Walla

You may be interested in your other planting guides for Walla Walla.