Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. 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 a good idea to plant radicchio is to look at the USDA zone info for Dinuba.

Planting Calendar for Radicchio

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

Since radicchio do well in moderate cold you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant radicchio in Dinuba is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant radicchio and expect a good harvest is probably October. 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

On average all chance of frost has passed is on February 15 in Dinuba. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Dinuba is not always accurate the actual date of last frost changes from year to year. Half of the time in Dinuba there is a last frost after February 15 so always be ready to protect your radicchio in the event of a surprise late frost.

USDA Zone Info for Dinuba

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Dinuba

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