The USDA Zone info is a great tool for gardeners to help us estimate 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.

A way of estimating when it's a good idea to plant browallia is to refer to the USDA zone info for Nevada.

Planting Calendar for Browallia

Frost tolerance for browallia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You can not plant browallia until after the last frost has passed because they require warm weather.

The earliest that you can plant browallia in Nevada is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

On average the last frost has passed is on April 15 in Nevada. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Nevada may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Nevada it frosts late in the year after April 15 so make sure that you are prepared to protect your browallia in the event of a surprise late frost.

USDA Zone Info for Nevada

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in Nevada

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