One of the best tools that you have as gardeners to help us determine 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 will be able to figure out when to plant oleander by checking out the USDA zone info for Gilmer.

Planting Calendar for Oleander

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

Since oleander require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant oleander in Gilmer 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 oleander and expect a good harvest is probably August. If you wait any later than that and your oleander may not have a chance to grow to maturity. Starting your oleander indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Gilmer. In the coldest months of winter you should expect an average low temperature of 10°F.

Keep in mind that USDA zone info for Gilmer is just an average and the actual date of last frost is different every year. Since half of the time in Gilmer you get a frost after March 15 be ready to cover your oleander if you have a late frost.

USDA Zone Info for Gilmer

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Gilmer

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