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.

You should be able to figure out when it's the best time to plant radicchio by checking out the USDA zone info for El Cerrito.

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 El Cerrito 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. 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 January 31 in El Cerrito. You should expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that USDA zone info for El Cerrito may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in El Cerrito last frost occurs after January 31 so be sure to be ready to cover your radicchio in the event of a surprise late frost.

USDA Zone Info for El Cerrito

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in El Cerrito

You may be interested in your other planting guides for El Cerrito.