When can I plant Geum in Zone 4a

One of the best tools that we have as gardeners to help us figure out our gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

By looking at the USDA zone info for Zone 4a it's possible to estimate when it's a good idea to plant geum.


Planting Calendar for Geum

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

Since geum are barely cold tolerant you can plant them a bit earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant geum
Possibly ok, but a risky time to plant geum
Probably not a good time to plant geum

The earliest that you can plant geum in Zone 4a 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 geum and expect a good harvest is probably August. You probably don't want to wait any later than that or else 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

In Zone 4a the average date of last frost happens on May 15. It might get as low as -30°F during the coldest months of winter.

Since the USDA zone info for Zone 4a is an average our actual date of last frost will vary from year to year. Half of the time in Zone 4a it frosts late in the year after May 15 so make sure that you are prepared to cover your geum in the event of a late frost.

USDA Zone Info for Zone 4a

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zone 4a

You may be interested in our other planting guides for Zone 4a.