Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Eureka it's possible 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.

Since potatos do well in cold you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant potatos in Eureka 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. Any later than that and your potatos may not have a chance to grow to maturity. If you are starting your potatos indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Eureka the average date of last frost happens on February 15. You should expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Eureka is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Eureka last frost occurs after February 15 be ready to cover your potatos in the event of a late frost.

USDA Zone Info for Eureka

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Eureka

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