One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when you can plant pampas grass is to examine the USDA zone info for Roseburg.

Planting Calendar for Pampas Grass

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

It's probably not a good idea to plant pampas grass until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant pampas grass in Roseburg 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 fully mature. You can get started a couple of weeks earlier by starting your pampas grass indoors.

Last Frost Date

In Roseburg the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Roseburg is just an average and the actual date of last frost changes from year to year. Since half of the time in Roseburg you get a frost after February 15 be ready to protect your pampas grass if you have one of those late frosts.

USDA Zone Info for Roseburg

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 Roseburg

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