The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant pampas grass in Scottsdale should be estimated by using the USDA zone info.

Planting Calendar for Pampas Grass

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

Since pampas grass 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 pampas grass 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 pampas grass and expect a good harvest is probably September. You probably don't want to wait any later than that or else your pampas grass may not have a chance to really do well. If you are starting your pampas grass indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Scottsdale. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Scottsdale is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Scottsdale you get a frost after February 15 so be sure to be ready to protect your pampas grass in the event of a surprise 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.