One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of getting a good idea when it's the best time to plant radicchio is to check out the USDA zone info for Woodstock.

Planting Calendar for Radicchio

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

You can plant radicchio just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant radicchio in Woodstock 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. You probably don't want to wait any later than that or else your radicchio may not have a chance to grow to maturity. If you are starting your radicchio indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Woodstock is not always accurate the actual date of last frost is different every year. Half of the time in Woodstock you get surprised by a frost after April 15 so make sure that you are ready to cover your radicchio in the event of one of those late frosts.

USDA Zone Info for Woodstock

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 Woodstock

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