One of the best tools that you have as gardeners to help us estimate 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.

One way of getting a good idea when it's possible to plant stevia is to refer to the USDA zone info for Spokane.

Planting Calendar for Stevia

Frost tolerance for stevia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since stevia do not do well in cold weather you need to wait until after the last frost has passed before you can plant them.

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

The last month that you can plant stevia and expect a good harvest is probably August. Any later than that and your stevia may not have a chance to grow to maturity. You can get started a little bit earlier by starting your stevia indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Spokane. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Spokane is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Spokane there is a last frost after April 15 so always be ready to cover your stevia if you have a surprise late frost.

USDA Zone Info for Spokane

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 Spokane

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