One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. 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 College Place should be read to estimate 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.

It's probably a bad idea to plant oleander until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant oleander in College Place 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. You probably don't want to wait any later than that or else your oleander may not have a chance to fully mature. 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

The average date of last frost is April 15 in College Place. You should expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that USDA zone info for College Place is an average and the actual date of last frost changes from year to year. Half of the time in College Place there is a last frost after April 15 so always be ready to protect your oleander if you have one of those late frosts.

USDA Zone Info for College Place

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in College Place

You may be interested in your other planting guides for College Place.