One of the best tools that you have as gardeners to help us estimate your 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 your area.

You should be able to figure out when you can plant geranium by reviewing the USDA zone info for Oak Ridge.

Planting Calendar for Geranium

Frost tolerance for geranium:	Not tolerant of frost.
When to plant:	After the last frost.

Since geranium are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant geranium in Oak Ridge 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 geranium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your geranium may not have a chance to fully mature. Starting your geranium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Oak Ridge the average date of last frost happens on April 15. You can expect an average low temperature of 0°F in the coldest months of winter.

It's important to remember that USDA zone info for Oak Ridge is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Oak Ridge it frosts late in the year after April 15 so always be ready to cover your geranium in the event of one of those late frosts.

USDA Zone Info for Oak Ridge

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Oak Ridge

You may be interested in your other planting guides for Oak Ridge.