Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant trachelium in Scottsdale can be estimated by reviewing the USDA zone info.

Planting Calendar for Trachelium

Frost tolerance for trachelium:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant trachelium until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant trachelium in Scottsdale 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 trachelium and expect a good harvest is probably September. Any later than that and your trachelium may not have a chance to grow to maturity. Starting your trachelium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Scottsdale. It might get as low as 25°F during the coldest months of winter.

It's important to remember that USDA zone info for Scottsdale is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Scottsdale it frosts late in the year after February 15 so just be sure to be ready to protect your trachelium if you have one of those late frosts.

USDA Zone Info for Scottsdale

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 Scottsdale

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