One of the first steps you take when you are figuring out 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 it's a good idea to plant pennyroyal by looking at the USDA zone info for Sacramento.

Planting Calendar for Pennyroyal

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

Pennyroyal are very cold tolerant which tells us that you can get them planted much earlier than more sensitive plants.

The earliest that you can plant pennyroyal in Sacramento 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 pennyroyal and expect a good harvest is probably October. If you wait any later than that and your pennyroyal may not have a chance to fully mature. Starting your pennyroyal indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Sacramento. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Sacramento is an average the actual date of last frost is different every year. Half of the time in Sacramento last frost occurs after February 15 so always be ready to protect your pennyroyal if you have one of those late frosts.

USDA Zone Info for Sacramento

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Sacramento

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