The USDA Zone info is a great tool for gardeners to help us determine 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.

One way of making a decision about when to plant bishop's weed is to refer to the USDA zone info for Gardena.

Planting Calendar for Bishop's Weed

Frost tolerance for bishop's weed:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Bishop's Weed do ok in pretty solid cold which tells us that you can plant them a lot earlier in the year than more sensitive plants.

The earliest that you can plant bishop's weed in Gardena 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 bishop's weed and expect a good harvest is probably October. You probably don't want to wait any later than that or else your bishop's weed may not have a chance to fully mature. Starting your bishop's weed indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Gardena. You should expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for Gardena is not always accurate the actual date of last frost changes from year to year. Since half of the time in Gardena there is a last frost after January 31 be ready to protect your bishop's weed in the event of a late frost.

USDA Zone Info for Gardena

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Gardena

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