One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Barstow you can estimate when to plant oregano by using the USDA zone info.

Planting Calendar for Oregano

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

You can plant oregano just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant oregano in Barstow 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. Any later than that and your oregano may not have a chance to really do well. 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

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

Just be sure to remember that USDA zone info for Barstow is an average and the actual date of last frost is different every year. Half of the time in Barstow you get surprised by a frost after February 15 so make sure that you are ready to protect your oregano if you have a late frost.

USDA Zone Info for Barstow

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 Barstow

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