Photo by Melody

PlantFiles: Pampas Grass
Cortaderia jubata

Family: Poaceae (poh-AY-see-ee) (Info)
Genus: Cortaderia (kor-tuh-DEER-ee-uh) (Info)
Species: jubata (joo-BAH-tuh) (Info)

One member has or wants this plant for trade.

Ornamental Grasses and Bamboo

12-15 ft. (3.6-4.7 m)

36-48 in. (90-120 cm)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:

Bloom Time:
Unknown - Tell us

Unknown - Tell us

Other details:
May be a noxious weed or invasive

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By lehua_mc
Thumbnail #1 of Cortaderia jubata by lehua_mc


1 positive
No neutrals
2 negatives

Gardeners' Notes:

Positive Gardeningman On Sep 4, 2013, Gardeningman from Kingman, KS wrote:

I haven't found this plant to be invasive in my area. The only complaint I have is that it is planted too often.
However, it is graceful when blowing in the breeze and looks better than some things that people tend to over plant. It is a very durable plant and holds up to drought fairly well. It is one of those plant it and forget it kind of plants. So as far as the plant is concerned, I give it a positive rating.

Negative lehua_mc On Jun 12, 2009, lehua_mc from Portland, OR (Zone 8b) wrote:

With minimal research, I've decided I have the 'jubata' species due to the rangy looking plumes that come up. Pampas is a documented invasive plant in Oregon, but look at this thing! Major warfare will need to be waged. Nasty plant, you don't want to get near this thing, it will reach out and grab you. The hairs are not to be underestimated (again, think about mowing near it on a hot day). The only people who think it's pretty are those who don't have to live with it.

Negative Zanymuse On Apr 22, 2003, Zanymuse from Scotia, CA (Zone 9b) wrote:

Extremely invasive this plant is taking over large areas as it crowds out native plants and is hindering the reforestation efforts here in Northern California. Difficult to irradicate due to it's tennacious root system and ability to spread by seeds born on the wind and by birds. The roots suevive underground after fires and send up new shoots in the next wet period. Efforts to irradicate it have been sporatic but seem to be increasing as the problem continues to grow.


This plant has been said to grow in the following regions:

Carlotta, California
San Francisco, California
Kingman, Kansas
Folsom, Louisiana
Saint Landry, Louisiana
Portland, Oregon

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