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 Redlands you can determine when it's possible to plant bishop's weed by referring to the USDA zone info.

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.

You can plant bishop's weed earlier in the year because they are very cold tolerant.

The earliest that you can plant bishop's weed in Redlands 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. Any later than that and your bishop's weed may not have a chance to really do well. Starting your bishop's weed indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Redlands. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Redlands is an average and the actual date of last frost changes from year to year. Since half of the time in Redlands you get a frost after February 15 be ready to protect your bishop's weed in the event of a late frost.

USDA Zone Info for Redlands

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 Redlands

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