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

In Sahuarita you can figure out when it's the best time to plant blue throatwort by checking out the USDA zone info.

Planting Calendar for Blue Throatwort

Frost tolerance for blue throatwort:	Not tolerant of frost.
When to plant:	After the last frost.

Since blue throatwort do not do well in cold weather you must wait until after the last frost has passed before you can plant them.

The earliest that you can plant blue throatwort in Sahuarita 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 blue throatwort and expect a good harvest is probably September. If you wait any later than that and your blue throatwort may not have a chance to fully mature. If you are starting your blue throatwort 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 has passed is on February 15 in Sahuarita. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Sahuarita may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Sahuarita last frost occurs after February 15 so make sure that you are ready to protect your blue throatwort in the event of one of those late frosts.

USDA Zone Info for Sahuarita

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 Sahuarita

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