One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant hamburg root parsley in New Haven should be estimated by referring to the USDA zone info.

Planting Calendar for Hamburg root parsley

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

Since hamburg root parsley are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant hamburg root parsley in New 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 hamburg root parsley and expect a good harvest is probably September. Any later than that and your hamburg root parsley may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your hamburg root parsley indoors.

Last Frost Date

In New Haven the average date of last frost happens on April 15. It might get as low as 0°F during the coldest months of winter.

Keep in mind that USDA zone info for New Haven is not always accurate and the actual date of last frost will vary from year to year. Half of the time in New Haven there is a last frost after April 15 so just be sure to be ready to protect your hamburg root parsley if you have a late frost.

USDA Zone Info for New Haven

Here is the info for USDA Zone 7a.

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

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in New Haven

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