Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Willoughby you can determine when it's possible to plant hamburg root parsley by looking at 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 moderately cold tolerant you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant hamburg root parsley in Willoughby 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 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 Willoughby. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Willoughby is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Willoughby you get a frost after April 15 so just be sure to be ready to protect your hamburg root parsley in the event of a late frost.

USDA Zone Info for Willoughby

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 Willoughby

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