Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's possible to plant oleander is to check out the USDA zone info for Springfield.

Planting Calendar for Oleander

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

Since oleander are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant oleander in Springfield is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant oleander and expect a good harvest is probably September. You probably don't want to wait any later than that or else your oleander may not have a chance to grow to maturity. You can get started a little bit earlier by starting your oleander indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Springfield. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Springfield may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Springfield it frosts late in the year after February 15 be ready to cover your oleander if you have a surprise late frost.

USDA Zone Info for Springfield

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Springfield

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