One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Liberty Lake can be read to determine when you can plant potatos.

Planting Calendar for Potatos

Frost tolerance for potatos:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Potatos are very cold tolerant which tells us that you can plant them much earlier than other frost tender plants.

The earliest that you can plant potatos in Liberty Lake is February. However, you really should wait until March if you don't want to take any chances.

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

Last Frost Date

In Liberty Lake the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Liberty Lake may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Liberty Lake you get surprised by a frost after April 15 so make sure that you are prepared to protect your potatos if you have one of those late frosts.

USDA Zone Info for Liberty Lake

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Liberty Lake

You may be interested in your other planting guides for Liberty Lake.