The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Danville you can estimate when you can plant pennyroyal by using the USDA zone info.

Planting Calendar for Pennyroyal

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

Pennyroyal do well in cold which means that you can start planting them much earlier than plants that are more sensitive to the cold.

The earliest that you can plant pennyroyal in Danville 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 really do well. You can get started a little bit earlier by starting your pennyroyal indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Danville. You can expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Danville is an average and the actual date of last frost is different every year. Since half of the time in Danville you get a frost after February 15 be ready to protect your pennyroyal in the event of a late frost.

USDA Zone Info for Danville

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 Danville

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