One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when to plant tagetes in Scottsdale by looking at the USDA zone info.

Planting Calendar for Tagetes

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

Since tagetes are not cold tolerant it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant tagetes 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 tagetes and expect a good harvest is probably September. If you wait any later than that and your tagetes may not have a chance to really do well. If you are starting your tagetes indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Scottsdale. You should expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Scottsdale and it can change quite a bit from year to year. Half of the time in Scottsdale you get surprised by a frost after February 15 so be sure to be ready to protect your tagetes if you have a late frost.

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.