One of the best tools that you have as gardeners to help us determine 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.

You should be able to estimate when to plant broccoli by referring to the USDA zone info for Carthage.

Planting Calendar for Broccoli

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

You can plant broccoli just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant broccoli in Carthage 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. If you wait any later than that and your broccoli may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your broccoli indoors.

Last Frost Date

On average the last frost is on April 15 in Carthage. It might get as low as -5°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Carthage and it can change quite a bit from year to year. Half of the time in Carthage last frost occurs after April 15 so always be ready to protect your broccoli if you have a late frost.

USDA Zone Info for Carthage

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 Carthage

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