Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant potatos in Upland should be figured out by using the USDA zone info.

Planting Calendar for Potatos

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

You can plant potatos a lot earlier in the year because they are very cold tolerant.

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

The last month that you can plant potatos and expect a good harvest is probably October. You probably don't want to wait any later than that or else your potatos may not have a chance to grow to maturity. Starting your potatos indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on January 31 in Upland. In the coldest months of winter you should expect an average low temperature of 30°F.

It's important to remember that USDA zone info for Upland is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Upland last frost occurs after January 31 so always be ready to cover your potatos in the event of one of those late frosts.

USDA Zone Info for Upland

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Upland

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