Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for Las Vegas you will be able to determine when to plant creeping zinnia.

Planting Calendar for Creeping Zinnia

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

Creeping Zinnia do well in a tiny bit of cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant creeping zinnia in Las Vegas 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 creeping zinnia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your creeping zinnia may not have a chance to really do well. You can get started a little bit earlier by starting your creeping zinnia indoors.

Last Frost Date

On average the last frost is on February 15 in Las Vegas. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Las Vegas is an average the actual date of last frost is different every year. Since half of the time in Las Vegas it frosts late in the year after February 15 be ready to protect your creeping zinnia if you have a late frost.

USDA Zone Info for Las Vegas

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 Las Vegas

You may be interested in your other planting guides for Las Vegas.