When can I plant Stevia in Zone 1b

One of the best tools that we have as gardeners to help us estimate our gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The USDA zone info for Zone 1b can be used to estimate when it's the best time to plant stevia.


Planting Calendar for Stevia

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

Stevia do not do well in cold weather which tells us that you have to wait until it warms up after the last frost before you can plant them.

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 1b is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant stevia and expect a good harvest is probably July. 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 Zone 1b the average date of last frost happens on June 15. We can expect an average low temperature of -55°F in the coldest months of winter.

Since the USDA zone info for Zone 1b may not be accurate from year to year our actual date of last frost is different every year. Since half of the time in Zone 1b we get surprised by a frost after June 15 be ready to cover your stevia if we have a surprise late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.