When to Plant Parsnip in Harlan, IA

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.

You will be able to estimate when it's a good idea to plant parsnip by checking out the USDA zone info for Harlan.


Planting Calendar for Parsnip

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

You can plant parsnip a little bit earlier in the year because they are moderately cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant parsnip
Possibly ok, but a risky time to plant parsnip
Probably not a good time to plant parsnip

The earliest that you can plant parsnip in Harlan 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 parsnip and expect a good harvest is probably September. If you wait any later than that and your parsnip may not have a chance to really do well. If you are starting your parsnip indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Harlan the average date of last frost happens on April 15. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Harlan is an average the actual date of last frost is different every year. Since half of the time in Harlan you get a frost after April 15 be ready to cover your parsnip in the event of a surprise late frost.

USDA Zone Info for Harlan

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Harlan

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