Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Union City you can figure out when it's possible to plant romanesco by reviewing the USDA zone info.

Planting Calendar for Romanesco

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

Romanesco do ok in moderate cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant romanesco in Union City 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 romanesco and expect a good harvest is probably October. You probably don't want to wait any later than that or else your romanesco may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your romanesco indoors.

Last Frost Date

The average date of last frost is January 31 in Union City. In the coldest months of winter you can expect an average low temperature of 30°F.

Keep in mind that USDA zone info for Union City is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Union City last frost occurs after January 31 be ready to cover your romanesco in the event of a surprise late frost.

USDA Zone Info for Union City

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 Union City

You may be interested in your other planting guides for Union City.