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 should be able to estimate when it's a good idea to plant oregano by looking at the USDA zone info for Wickenburg.

Planting Calendar for Oregano

Frost tolerance for oregano:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Oregano can survive in a little bit of cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant oregano in Wickenburg is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant oregano and expect a good harvest is probably October. You probably don't want to wait any later than that or else your oregano may not have a chance to grow to maturity. If you are starting your oregano indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Wickenburg. You should expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Wickenburg is just an average and the actual date of last frost is different every year. Since half of the time in Wickenburg you get surprised by a frost after February 15 be ready to protect your oregano if you have a late frost.

USDA Zone Info for Wickenburg

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 Wickenburg

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