The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of figuring out when you can plant romanesco is to examine the USDA zone info for Siler City.

Planting Calendar for Romanesco

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

Romanesco do well in moderate cold which means that you can plant them a little bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant romanesco in Siler City 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 romanesco and expect a good harvest is probably September. If you wait any later than that and your romanesco may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your romanesco indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Siler City. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Siler City is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Siler City last frost occurs after April 15 so make sure that you are prepared to protect your romanesco if you have one of those late frosts.

USDA Zone Info for Siler City

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Siler City

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