One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when to plant broccoli is to check out the USDA zone info for Hibbing.

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 a bit earlier in the year because they are moderately cold tolerant.

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

The last month that you can plant broccoli and expect a good harvest is probably August. If you wait any later than that and your broccoli may not have a chance to fully mature. Starting your broccoli indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Hibbing the average date of last frost happens on May 15. You can expect an average low temperature of -35°F in the coldest months of winter.

Since the USDA zone info for Hibbing may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Hibbing last frost occurs after May 15 be ready to protect your broccoli if you have a surprise late frost.

USDA Zone Info for Hibbing

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Hibbing

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