When to Plant Oleander in Pontiac, IL

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

The USDA zone info for Pontiac can be used to figure out when it's possible to plant oleander.


Planting Calendar for Oleander

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

It's not a good idea to plant oleander until after the last frost has passed because they require warm weather.

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

The earliest that you can plant oleander in Pontiac 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 really do well. You can get started a couple of weeks earlier by starting your oleander indoors.

Last Frost Date

The average date of last frost is April 15 in Pontiac. You should expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that USDA zone info for Pontiac is an average and the actual date of last frost is different every year. Since half of the time in Pontiac there is a last frost after April 15 be ready to cover your oleander if you have one of those late frosts.

USDA Zone Info for Pontiac

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Pontiac

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