One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant hollyhocks in North Las Vegas should be figured out by referring to the USDA zone info.

Planting Calendar for Hollyhocks

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

Hollyhocks do well in moderate cold which tells us that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant hollyhocks in North Las Vegas 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 hollyhocks and expect a good harvest is probably October. If you wait any later than that and your hollyhocks may not have a chance to fully mature. You can get started a few weeks earlier by starting your hollyhocks indoors.

Last Frost Date

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

Since the USDA zone info for North Las Vegas is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in North Las Vegas there is a last frost after February 15 be ready to protect your hollyhocks if you have a surprise late frost.

USDA Zone Info for North 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 North Las Vegas

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