When can I plant Radicchio in Zone 12b

Before planting it is a good idea to find our USDA Zone info to determine our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The USDA zone info for Zone 12b can be read to figure out when it's the best time to plant radicchio.


Planting Calendar for Radicchio

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

Since radicchio are moderately cold tolerant you can plant them a little earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant radicchio
Possibly ok, but a risky time to plant radicchio
Probably not a good time to plant radicchio

The earliest that you can plant radicchio in Zone 12b 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 November. Any later than that and your radicchio may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your radicchio indoors.

Last Frost Date

In Zone 12b it never frosts. We should expect an average low temperature of 55°F in the coldest months of winter.

Keep in mind that USDA zone info for Zone 12b is just an average and our actual date of last frost will vary from year to year. Since it never frosts in Zone 12b you do not have to be ready to protect your radicchio in the event of a surprise late frost.

USDA Zone Info for Zone 12b

Here is the info for USDA Zone 12b.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low55°F
Highest Expected Low60°F

This means that on a really cold year, the coldest it will get is 55°F. On most years you should be prepared to experience lows near 60°F.

Plants to Grow in Zone 12b

You may be interested in our other planting guides for Zone 12b.