The USDA Zone info is a great tool for gardeners to help us figure out 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.

One way of determining when to plant stevia is to examine the USDA zone info for Collegedale.

Planting Calendar for Stevia

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

Since stevia are not cold tolerant it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant stevia in Collegedale 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. You probably don't want to wait any later than that or else 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

The average date of last frost is April 15 in Collegedale. You can expect an average low temperature of 5°F in the coldest months of winter.

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

USDA Zone Info for Collegedale

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Collegedale

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