The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when it's possible to plant geum by looking at the USDA zone info for Oshkosh.

Planting Calendar for Geum

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

Since geum are one of those plants that can tolerate a tiny bit of cold weather you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant geum in Oshkosh 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 geum and expect a good harvest is probably August. Any later than that and your geum may not have a chance to really do well. You can get started a few weeks earlier by starting your geum indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Oshkosh. In the coldest months of winter you can expect an average low temperature of -20°F.

Keep in mind that USDA zone info for Oshkosh is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Oshkosh last frost occurs after April 15 be ready to protect your geum in the event of a late frost.

USDA Zone Info for Oshkosh

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Oshkosh

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