The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for North Chicago you should be able to estimate when you can plant scaevola.

Planting Calendar for Scaevola

Frost tolerance for scaevola:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You really shouldn't plant scaevola until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant scaevola in North Chicago 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 scaevola and expect a good harvest is probably August. Any later than that and your scaevola may not have a chance to fully mature. Starting your scaevola indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in North Chicago. In the coldest months of winter you can expect an average low temperature of -15°F.

Keep in mind that USDA zone info for North Chicago 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 North Chicago it frosts late in the year after April 15 so make sure that you are ready to cover your scaevola if you have one of those late frosts.

USDA Zone Info for North Chicago

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 North Chicago

You may be interested in your other planting guides for North Chicago.