One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Louisville you can determine when to plant stevia by checking out the USDA zone info.

Planting Calendar for Stevia

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

Stevia are not cold tolerant which means that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant stevia in Louisville 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. If you wait any later than that and your stevia may not have a chance to fully mature. You can get started a few weeks earlier by starting your stevia indoors.

Last Frost Date

The average date of last frost is April 15 in Louisville. In the coldest months of winter you can expect an average low temperature of 0°F.

Remember that USDA zone info for Louisville is an average and the actual date of last frost is different every year. Half of the time in Louisville you get a frost after April 15 so just be sure to be ready to cover your stevia in the event of one of those late frosts.

USDA Zone Info for Louisville

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Louisville

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