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

The first opportunity to plant radicchio in Pittsburg should be determined by using the USDA zone info.

Planting Calendar for Radicchio

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

Radicchio do ok in mild cold which means that you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant radicchio in Pittsburg 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 radicchio and expect a good harvest is probably September. If you wait any later than that and your radicchio may not have a chance to really do well. Starting your radicchio indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Pittsburg the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Pittsburg is not always accurate and the actual date of last frost is different every year. Half of the time in Pittsburg you get a frost after April 15 so make sure that you are ready to cover your radicchio if you have a late frost.

USDA Zone Info for Pittsburg

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 Pittsburg

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