One of the first steps you take when you are figuring out your gardening schedule is find your 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 USDA zone info for New Haven should be looked at to estimate when to plant hamburg root parsley.

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 moderately cold tolerant you can plant them a little bit earlier in the year than other plants that might not handle 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. You probably don't want to wait any later than that or else your hamburg root parsley may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your hamburg root parsley indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in New Haven. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for New Haven is not always accurate and the actual date of last frost is different every year. Since half of the time in New Haven it frosts late in the year after April 15 be ready to cover your hamburg root parsley in the event of one of those late frosts.

USDA Zone Info for New Haven

Here is the info for USDA Zone 6a.

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

This means that on a really cold year, the coldest it will get is -10°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.