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.

By using the USDA zone info for Roseburg you should be able to estimate when to 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 means that you can plant them much earlier than other plants that might not handle the cold.

The earliest that you can plant potatos in Roseburg 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. You can get started a couple of weeks earlier by starting your potatos indoors.

Last Frost Date

The average date of last frost is February 15 in Roseburg. You can expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Roseburg is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Roseburg last frost occurs after February 15 so make sure that you are ready to protect your potatos if you have a surprise late frost.

USDA Zone Info for Roseburg

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Roseburg

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