One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when you can plant radicchio is to look at the USDA zone info for Woonsocket.

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 a little bit of cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant radicchio in Woonsocket 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 fully mature. You can get started a little bit earlier by starting your radicchio indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Woonsocket is just an average and the actual date of last frost will vary from year to year. Half of the time in Woonsocket last frost occurs after April 15 so be sure to be ready to protect your radicchio if you have a surprise late frost.

USDA Zone Info for Woonsocket

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 Woonsocket

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