The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to estimate when it's possible to plant rosemary by looking at the USDA zone info for Greenfield.

Planting Calendar for Rosemary

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

You can plant rosemary a lot earlier in the year because they do well in cold.

The earliest that you can plant rosemary in Greenfield is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant rosemary and expect a good harvest is probably September. Any later than that and your rosemary may not have a chance to fully mature. Starting your rosemary indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Greenfield. You should expect an average low temperature of -10°F in the coldest months of winter.

Always keep in mind that USDA zone info for Greenfield is not always accurate and the actual date of last frost changes from year to year. Half of the time in Greenfield it frosts late in the year after April 15 so just be sure to be ready to protect your rosemary in the event of one of those late frosts.

USDA Zone Info for Greenfield

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Greenfield

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