The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Surprise it's a good idea to estimate when it's a good idea to plant stevia.

Planting Calendar for Stevia

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

Since stevia are not cold tolerant you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant stevia in Surprise 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 stevia and expect a good harvest is probably September. If you wait any later than that and your stevia may not have a chance to grow to maturity. Starting your stevia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Remember that USDA zone info for Surprise may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Surprise there is a last frost after February 15 so be sure to be ready to cover your stevia in the event of a late frost.

USDA Zone Info for Surprise

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 Surprise

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