When can I plant California Poppy in Evanston, IL

Before planting it is a good idea to find our USDA Zone info to determine our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The earliest that you can plant california poppy in Evanston can be estimated by referring to the USDA zone info.


Planting Calendar for California Poppy

Frost tolerance for california poppy: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

You can plant california poppy just a tiny bit earlier in the year because they are barely cold tolerant.

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

The earliest that you can plant california poppy in Evanston is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant california poppy and expect a good harvest is probably August. If you wait any later than that and your california poppy may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your california poppy indoors.

Last Frost Date

In Evanston the average date of last frost happens on April 15. In the coldest months of winter we should expect an average low temperature of -15°F.

Since the USDA zone info for Evanston is an average our actual date of last frost can change quite a bit from year to year. Half of the time in Evanston we get a frost after April 15 so be sure to be ready to protect your california poppy if we have a surprise late frost.

USDA Zone Info for Evanston

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 Evanston

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