When can I plant Thyme in Zone 1b

One of the best tools that we have as gardeners to help us figure out our gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The best time to plant thyme in Zone 1b should be estimated by checking out the USDA zone info.


Planting Calendar for Thyme

Frost tolerance for thyme: Very tolerant of frost.
When you should plant them: Up to 7 weeks before last frost.

Thyme are very cold tolerant which means that you can plant them much earlier than plants that are more sensitive to the cold.

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

The earliest that you can plant thyme in Zone 1b 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 thyme and expect a good harvest is probably July. If you wait any later than that and your thyme may not have a chance to really do well. You can get started a few weeks earlier by starting your thyme indoors.

Last Frost Date

On average the last frost has passed is on June 15 in Zone 1b. In the coldest months of winter we should expect an average low temperature of -55°F.

It's important to remember that USDA zone info for Zone 1b is just an average and our actual date of last frost is different every year. Half of the time in Zone 1b there is a last frost after June 15 so just be sure to be ready to cover your thyme in the event of a 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.