Before planting it is a good idea to find your USDA Zone info to figure out 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.

You can figure out when it's a good idea to plant nolana in Tucson by reviewing the USDA zone info.

Planting Calendar for Nolana

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

Since nolana require warm weather it is necessary to wait until after the last frost has passed before you can plant them.

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

The last month that you can plant nolana and expect a good harvest is probably September. Any later than that and your nolana may not have a chance to grow to maturity. If you are starting your nolana indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Tucson. In the coldest months of winter you should expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Tucson is not always accurate and the actual date of last frost changes from year to year. Half of the time in Tucson last frost occurs after February 15 so make sure that you are prepared to protect your nolana if you have a surprise late frost.

USDA Zone Info for Tucson

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Tucson

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