One of the first steps you take when you are determining 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.

In Zionsville you can determine when it's possible to plant broccoli by referring to the USDA zone info.

Planting Calendar for Broccoli

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

Broccoli are moderately cold tolerant which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant broccoli in Zionsville 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 grow to maturity. You can get started a little bit earlier by starting your broccoli indoors.

Last Frost Date

The average date of last frost is April 15 in Zionsville. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Zionsville is an average and the actual date of last frost changes from year to year. Half of the time in Zionsville last frost occurs after April 15 so always be ready to cover your broccoli in the event of a late frost.

USDA Zone Info for Zionsville

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Zionsville

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