One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when to plant thyme by looking at the USDA zone info for Norwalk.

Planting Calendar for Thyme

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

Thyme do well in quite 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 Norwalk is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant thyme and expect a good harvest is probably September. Any later than that and your thyme may not have a chance to grow to maturity. Starting your thyme indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Norwalk is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Norwalk you get a frost after April 15 be ready to cover your thyme in the event of one of those late frosts.

USDA Zone Info for Norwalk

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 Norwalk

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