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.

It's possible to estimate when you can plant hamburg root parsley by referring to the USDA zone info for Sullivan.

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.

Hamburg root parsley do ok in mild cold which tells us that you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant hamburg root parsley in Sullivan 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 few weeks earlier by starting your hamburg root parsley indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Sullivan. In the coldest months of winter you should expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Sullivan is not always accurate and the actual date of last frost changes from year to year. Half of the time in Sullivan you get surprised by a frost after April 15 so make sure that you are ready to protect your hamburg root parsley in the event of a surprise late frost.

USDA Zone Info for Sullivan

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 Sullivan

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