The USDA Zone info is a great tool for gardeners to help us figure out 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.

You will be able to figure out when you can plant oleander by referring to the USDA zone info for Barnwell.

Planting Calendar for Oleander

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

You can not plant oleander until after the last frost because they do not do well in cold weather.

The earliest that you can plant oleander in Barnwell 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. Any later than that and your oleander may not have a chance to fully mature. You can get started a few weeks earlier by starting your oleander indoors.

Last Frost Date

The average date of last frost is March 15 in Barnwell. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Barnwell may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Barnwell last frost occurs after March 15 be ready to protect your oleander in the event of a late frost.

USDA Zone Info for Barnwell

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 Barnwell

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