When to Plant Pampas Grass in Fountain Hills, AZ

Before planting it is a good idea to find your USDA Zone info to estimate 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 pampas grass in Fountain Hills should be estimated by looking at the USDA zone info.


Planting Calendar for Pampas Grass

Frost tolerance for pampas grass: Not tolerant of frost.
When to plant: After the last frost.

You really shouldn't plant pampas grass until after the last frost when the weather gets warmer because they do not do well in cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant pampas grass
Possibly ok, but a risky time to plant pampas grass
Probably not a good time to plant pampas grass

The earliest that you can plant pampas grass in Fountain Hills 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. Any later than that and your pampas grass may not have a chance to really do well. You can get started a couple of weeks earlier by starting your pampas grass indoors.

Last Frost Date

The average date of last frost is February 15 in Fountain Hills. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Fountain Hills may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Fountain Hills it frosts late in the year after February 15 so make sure that you are prepared to cover your pampas grass in the event of a late frost.

USDA Zone Info for Fountain Hills

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 Low25°F
Highest Expected Low30°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 Fountain Hills

You may be interested in your other planting guides for Fountain Hills.