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.

In Posen you can determine when you can plant schizanthus by checking out the USDA zone info.

Planting Calendar for Schizanthus

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

Since schizanthus require warm weather you need to wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

The average date of last frost is April 15 in Posen. You can expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Posen and it changes from year to year. Since half of the time in Posen it frosts late in the year after April 15 be ready to protect your schizanthus if you have 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.