The invasive pampas grass has been uprooted from all known locations on Hawai’i Island. Female plants (C. selloana is dioecious) produce tens of thousands of wind-borne seeds each year and self-sows with abandon. Description. The invasive species Pamas grass (Cortaderia selloana) in the Atlantic is the focus of this first seminar from LIFE Stop Cortaderia.Topics include: context around the species; citizen science and involving the public in species control; strategies for Cortaderia management. These tall grasses have long, saw-toothed leaves with large plumes in late summer. Some pampas grass cultivars in the nursery trade. Pampas, a native to South America is a large clump of grass and is perennial in nature. Also known as Cortaderia Selloana, pampas grass can be a decorative addition to the garden.They can highlight your landscape and make your space look more beautiful. That makes pampas grass troublesome for those who do not want it, and the Big Island Invasive Species Committee on the island of Hawaii is on a mission to ensure that part of the state is rid of it. Some reports suggest the seeds can be carried as far as 20 miles (32 km). Grey Jordan 1, This grass is drought tolerant and likely will only need watering during extended dry spells once … Invasive and Exotic Grasses and Grass-like Plants . This grass is drought tolerant and likely will only need watering during extended dry spells once … The exit from our drive is onto a blind curve, already nerve-wracking, but the blasted grass makes the limited visibility nonexistent. Two species of pampas grass are found in Hawaii, Cortaderia selloana and C. jubata, which are difficult to tell apart. C. selloana (pampas grass) is an erect perennial, tussock grass, up to 2-4 m tall and 1-2 m wide. It has taken years for our pampas grass to expand enough for the individual plants to form a solid "hedge" like we wanted. Pampas grass (Cortaderia selloana), a plume grass from the pampas of Argentina, Bra­zil, and Chile, has been a popular specimen plant in temperate gardens of the western United States since the middle of the nineteenth century. Foliage Cortaderia selloana leaf blades can get up to 6 ft. (1.8 m) long and 1-3 in. Pampas grass (Cortaderia selloana) is very similar to pink pampas grass (Cortaderia jubata) and New Zealand pampas grass (Cortaderia richardii). Foliage Cortaderia selloana leaf blades can get up to 6 ft. (1.8 m) long and 1-3 in. Ecological Threat: Cortaderia selloana is a tall tussock grass that can reach heights of 4 meters. Photograph by Tony Hisgett via Flickr.. One species of Cortaderia is much more invasive. It is officially spring when DH burns the pampas grass! [1] Purple pampasgrass is a large, tufted, perennial grass native to South America. They are V-shaped in cross-section, and bluish green in color. Oahu – OISC is working to educate property owners where the few ornamental plantings of C. selloana exist, and requests that pampas grass be removed and replaced with non-invasive alternate plants. Pampas grass has proved extremely invasive and harmful to natural environments in many countries and is listed in the Global Invasive Species Database. Vol 12, Issue 3; Wal-Mart stops selling pampas grass in California. Family: Poaceae Pampas grass is native to South America and while it’s a popular ornamental grass, it is considered very invasive. I think it is a great landscape plant, and burning it off in the early spring has become a tradition. It grows 6-13’ tall and can be easily confused with jubata grass (Cortaderia jubata), which is also an invasive plant.Pampas grass grows more erect and fountain-like when compared to the spreading shape of jubata grass. Pampas grass has proved extremely invasive and harmful to natural environments in many countries and is listed in the Global Invasive Species Database. Through this article, know all about this beautiful grass and most importantly, about its maintenance. Cortaderia selloana 'Pumila' is a compact Pampas Grass that is perfect for mid-sized gardens. Pampas grass has made its way onto the invasive weed list in California and Texas, and been completely banned in New Zealand and Hawaii due to its ability to thrive and take over an area. Quite showy, this South American native features magnificent, dense tussocks of arching, narrow gray-green leaves that are gracefully topped from late summer to mid-winter by huge, silky, creamy-white plumes. Several decades ago, a surrogate species, Cortaderia jubata, was introduced to the trade and has since become a primary weed in coastal areas of the West. Lambrinos, John. Height – 1 ⅓ to to 13 feet (1.5 to 4 meters) Exposure – full sun Soil – ordinary. 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