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 should be able to determine when you can plant scallions by using the USDA zone info for Yreka.

Planting Calendar for Scallions

Frost tolerance for scallions:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since scallions do ok in moderate cold you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

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

The last month that you can plant scallions and expect a good harvest is probably August. If you wait any later than that and your scallions may not have a chance to fully mature. You can get started a few weeks earlier by starting your scallions indoors.

Last Frost Date

On average the last frost is on March 15 in Yreka. In the coldest months of winter you should expect an average low temperature of 10°F.

Always keep in mind that USDA zone info for Yreka is just an average and the actual date of last frost will vary from year to year. Half of the time in Yreka there is a last frost after March 15 so always be ready to protect your scallions if you have a surprise late frost.

USDA Zone Info for Yreka

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Yreka

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