The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant steirodiscus in Collinsville can be figured out by referring to the USDA zone info.

Planting Calendar for Steirodiscus

Frost tolerance for steirodiscus:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since steirodiscus are one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant steirodiscus in Collinsville 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 steirodiscus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your steirodiscus may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your steirodiscus indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Collinsville. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Collinsville is just an average the actual date of last frost will vary from year to year. Since half of the time in Collinsville there is a last frost after April 15 be ready to cover your steirodiscus if you have a surprise late frost.

USDA Zone Info for Collinsville

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Collinsville

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