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

By reviewing the USDA zone info for Chisholm you should be able to estimate when it's possible to plant thyme.

Planting Calendar for Thyme

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

Thyme can survive in a bit of cold which tells us that you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant thyme in Chisholm is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant thyme and expect a good harvest is probably August. If you wait any later than that and your thyme may not have a chance to really do well. If you are starting your thyme indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Chisholm the average date of last frost happens on May 15. It might get as low as -35°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Chisholm and it is different every year. Half of the time in Chisholm it frosts late in the year after May 15 so always be ready to protect your thyme in the event of one of those late frosts.

USDA Zone Info for Chisholm

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Chisholm

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