One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Bethlehem should be reviewed to estimate when you can plant romanesco.

Planting Calendar for Romanesco

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

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

The earliest that you can plant romanesco in Bethlehem 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. 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 few weeks earlier by starting your romanesco indoors.

Last Frost Date

The average date of last frost is April 15 in Bethlehem. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Bethlehem is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Bethlehem you get a frost after April 15 be ready to protect your romanesco in the event of one of those late frosts.

USDA Zone Info for Bethlehem

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Bethlehem

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