One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Middlesex can be used to estimate when it's possible to plant broccoli.

Planting Calendar for Broccoli

Frost tolerance for broccoli:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since broccoli do well in moderate cold you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant broccoli in Middlesex 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 broccoli and expect a good harvest is probably September. You probably don't want to wait any later than that or else your broccoli may not have a chance to really do well. Starting your broccoli indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for Middlesex is an average and the actual date of last frost changes from year to year. Half of the time in Middlesex there is a last frost after April 15 so make sure that you are prepared to protect your broccoli in the event of one of those late frosts.

USDA Zone Info for Middlesex

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 Middlesex

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