One of the first steps you take when you are making a decision about 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 first opportunity to plant romanesco in Grand Haven can be figured out by looking at 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.

Since romanesco are moderately cold tolerant you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant romanesco in Grand Haven 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 really do well. Starting your romanesco indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Grand Haven. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Grand Haven may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Grand Haven you get a frost after April 15 so make sure that you are prepared to protect your romanesco in the event of a late frost.

USDA Zone Info for Grand Haven

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 Grand Haven

You may be interested in your other planting guides for Grand Haven.