When to Plant Fanflower in Monticello, IL

One of the best tools that you have as gardeners to help us determine 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 earliest that you can plant fanflower in Monticello should be determined by referring to the USDA zone info.


Planting Calendar for Fanflower

Frost tolerance for fanflower: Not tolerant of frost.
When to plant: After the last frost.

It's probably a bad idea to plant fanflower until after all chance of frost has passed because they require warm weather.

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

The earliest that you can plant fanflower in Monticello is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant fanflower and expect a good harvest is probably August. You probably don't want to wait any later than that or else your fanflower may not have a chance to really do well. Starting your fanflower indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Monticello. In the coldest months of winter you should expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Monticello may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Monticello you get surprised by a frost after April 15 so just be sure to be ready to cover your fanflower if you have a surprise 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.