Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of estimating when it's a good idea to plant rosemary is to use the USDA zone info for Bloomfield.

Planting Calendar for Rosemary

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

Rosemary do ok in pretty solid cold which tells us that you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant rosemary in Bloomfield 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. You probably don't want to wait any later than that or else your rosemary may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your rosemary indoors.

Last Frost Date

The average date of last frost is April 15 in Bloomfield. You should expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Bloomfield is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Bloomfield it frosts late in the year after April 15 so just be sure to be ready to protect your rosemary if you have one of those late frosts.

USDA Zone Info for Bloomfield

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Bloomfield

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