One of the best tools that you have as gardeners to help us estimate your 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 your area.

One way of determining when it's the best time to plant thyme is to examine the USDA zone info for Colona.

Planting Calendar for Thyme

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

Thyme tend to make it in cold weather which means that you can plant them a lot earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant thyme in Colona 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. You probably don't want to wait any later than that or else your thyme may not have a chance to grow to maturity. You can get started a little bit earlier by starting your thyme indoors.

Last Frost Date

The average date of last frost is April 15 in Colona. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Colona is just an average the actual date of last frost changes from year to year. Since half of the time in Colona there is a last frost after April 15 be ready to protect your thyme in the event of a surprise late frost.

USDA Zone Info for Colona

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Colona

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