When can I plant Parsley in Monticello, IL

One of the best tools that we have as gardeners to help us estimate our 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 our area.

A way of determining when to plant parsley is to look at the USDA zone info for Monticello.


Planting Calendar for Parsley

Frost tolerance for parsley: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

You can plant parsley a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

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

The earliest that you can plant parsley in Monticello 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 parsley and expect a good harvest is probably September. Any later than that and your parsley may not have a chance to grow to maturity. If you are starting your parsley indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Monticello the average date of last frost happens on April 15. We can expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Monticello and it changes from year to year. Half of the time in Monticello it frosts late in the year after April 15 so always be ready to protect your parsley in the event of one of those late frosts.

USDA Zone Info for Monticello

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 Monticello

You may be interested in our other planting guides for Monticello.