When to Plant Oregano in Monticello, IL

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

The USDA zone info for Monticello can be reffered to in order to determine when to plant oregano.


Planting Calendar for Oregano

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

Oregano do well in moderate cold which tells us that you can plant them earlier than other frost tender plants.

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

The earliest that you can plant oregano 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 oregano and expect a good harvest is probably September. You probably don't want to wait any later than that or else your oregano may not have a chance to really do well. If you are starting your oregano indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Monticello. You should expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Monticello is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Monticello you get a frost after April 15 so be sure to be ready to cover your oregano if you have a late frost.

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 your other planting guides for Monticello.