Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Naperville it's a good idea to determine when to plant scutellaria.

Planting Calendar for Scutellaria

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

It's probably not a good idea to plant scutellaria until after the last frost because they are not cold tolerant.

The earliest that you can plant scutellaria in Naperville 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 scutellaria and expect a good harvest is probably August. Any later than that and your scutellaria may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your scutellaria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Naperville. In the coldest months of winter you can expect an average low temperature of -15°F.

Remember that USDA zone info for Naperville may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Naperville there is a last frost after April 15 be ready to protect your scutellaria if you have one of those late frosts.

USDA Zone Info for Naperville

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 Naperville

You may be interested in your other planting guides for Naperville.