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

It's possible to estimate when it's the best time to plant broccoli by referring to the USDA zone info for Tonganoxie.

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 little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant broccoli in Tonganoxie 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 fully mature. You can get started a couple of weeks earlier by starting your broccoli indoors.

Last Frost Date

The average date of last frost is April 15 in Tonganoxie. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Tonganoxie may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Tonganoxie it frosts late in the year after April 15 so just be sure to be ready to cover your broccoli in the event of a late frost.

USDA Zone Info for Tonganoxie

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Tonganoxie

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