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When to Plant Hamburg root parsley in Washington, IL

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Washington you can determine when it's a good idea 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 a bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant hamburg root parsley
Possibly ok, but a risky time to plant hamburg root parsley
Probably not a good time to plant hamburg root parsley

The earliest that you can plant hamburg root parsley in Washington 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 really do well. If you are starting your hamburg root parsley indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Washington. It might get as low as -15°F during the coldest months of winter.

Keep in mind that USDA zone info for Washington may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Washington last frost occurs after April 15 be ready to cover your hamburg root parsley in the event of one of those late frosts.

USDA Zone Info for Washington

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Washington

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