When can I plant Stevia in Zone 4a

Before planting it is a good idea to find our USDA Zone info to estimate our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

In Zone 4a you can estimate when to plant stevia by referring to the USDA zone info.


Planting Calendar for Stevia

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

It's probably not a good idea to plant stevia until after the last frost when the weather gets warmer because they are not cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant stevia
Possibly ok, but a risky time to plant stevia
Probably not a good time to plant stevia

The earliest that you can plant stevia in Zone 4a is May. However, you really should wait until June 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 couple of weeks earlier.

Last Frost Date

In Zone 4a the average date of last frost happens on May 15. We can expect an average low temperature of -30°F in the coldest months of winter.

Remember that USDA zone info for Zone 4a is an average and our actual date of last frost will vary from year to year. Since half of the time in Zone 4a last frost occurs after May 15 be ready to cover your stevia in the event of a surprise late frost.

USDA Zone Info for Zone 4a

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zone 4a

You may be interested in our other planting guides for Zone 4a.