One of the first steps you take when you are making a decision about 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 first opportunity to plant verbena in Yuma should be estimated by looking at the USDA zone info.

Planting Calendar for Verbena

Frost tolerance for verbena:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since verbena are barely cold tolerant you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant verbena and expect a good harvest is probably September. If you wait any later than that and your verbena may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your verbena indoors.

Last Frost Date

In Yuma the average date of last frost happens on January 31. You should expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Yuma is just an average and the actual date of last frost changes from year to year. Half of the time in Yuma you get a frost after January 31 so always be ready to protect your verbena if you have a surprise late frost.

USDA Zone Info for Yuma

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Yuma

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