One of the first steps you take when you are figuring out your gardening schedule is find your 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 iresene in Decatur should be estimated by reviewing the USDA zone info.

Planting Calendar for Iresene

Frost tolerance for iresene:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant iresene until after the last frost because they do not do well in cold weather.

The earliest that you can plant iresene in Decatur 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 iresene and expect a good harvest is probably August. If you wait any later than that and your iresene may not have a chance to fully mature. You can get started a few weeks earlier by starting your iresene indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Decatur. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Decatur may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Decatur last frost occurs after April 15 so make sure that you are ready to cover your iresene in the event of a late frost.

USDA Zone Info for Decatur

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 Decatur

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