When to Plant Oleander in Spring Valley, IL

One of the best tools that you have as gardeners to help us figure out 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.

The USDA zone info for Spring Valley can be used to determine when to plant oleander.


Planting Calendar for Oleander

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

Oleander do not do well in cold weather which tells us that it is important to wait until it warms up after the last frost before you can plant them.

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 Spring Valley 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. If you are starting your oleander indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Spring Valley the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Spring Valley is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Spring Valley there is a last frost after April 15 be ready to protect your oleander if you have a late frost.

USDA Zone Info for Spring Valley

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 Spring Valley

You may be interested in your other planting guides for Spring Valley.