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

You should be able to figure out when to plant bishop's weed by reviewing the USDA zone info for Greenfield.

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 tend to make it in quite a bit of cold which tells us that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant bishop's weed in Greenfield 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. If you wait any later than that and your bishop's weed may not have a chance to grow to maturity. You can get started a little bit earlier by starting your bishop's weed indoors.

Last Frost Date

The average date of last frost is February 15 in Greenfield. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Greenfield is just an average the actual date of last frost is different every year. Since half of the time in Greenfield last frost occurs after February 15 be ready to cover your bishop's weed if you have a surprise late frost.

USDA Zone Info for Greenfield

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Greenfield

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