One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

It's possible to estimate when to plant geum by checking out the USDA zone info for Grand Blanc.

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 plants that might not handle the cold.

The earliest that you can plant geum in Grand Blanc 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. If you wait any later than that and your geum may not have a chance to fully mature. You can get started a few weeks earlier by starting your geum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Grand Blanc. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Grand Blanc is an average the actual date of last frost is different every year. Half of the time in Grand Blanc there is a last frost after April 15 so make sure that you are prepared to protect your geum in the event of a surprise late frost.

USDA Zone Info for Grand Blanc

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 Grand Blanc

You may be interested in your other planting guides for Grand Blanc.