One of the best tools that you have as gardeners to help us determine 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.

A common way of getting a good idea when to plant thyme is to consult the USDA zone info for Placentia.

Planting Calendar for Thyme

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

Since thyme are very cold tolerant you can plant them earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant thyme and expect a good harvest is probably October. Any later than that and your thyme may not have a chance to fully mature. You can get started a little bit earlier by starting your thyme indoors.

Last Frost Date

On average the last frost is on January 31 in Placentia. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Placentia may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Placentia last frost occurs after January 31 so just be sure to be ready to protect your thyme in the event of a late frost.

USDA Zone Info for Placentia

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

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

Plants to Grow in Placentia

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