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 coleus in Posen should be figured out by using the USDA zone info.

Planting Calendar for Coleus

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

Since coleus require warm weather you must wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Posen. You can expect an average low temperature of -10°F in the coldest months of winter.

Remember that USDA zone info for Posen is an average and the actual date of last frost will vary from year to year. Half of the time in Posen you get surprised by a frost after April 15 so make sure that you are ready to cover your coleus in the event of a late frost.

USDA Zone Info for Posen

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Posen

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