Hill County waterways have a particularly noticeable invader; Arundo donax (giant cane), capable of reaching 30 feet high and boasting feathery, upright plumes during the late summer. Likely native to Asia, Texas Parks and Wildlife has designated the species a prohibited exotic species, and will be using part of its $570,000 invasive species budget to continue herbicide applications in Hill County rivers such as Blanco, Llano, Nieces and Pedernales (all of which have giant cane infestations).
With approximately 60,000 acres of the plant established in Texas, many companies, and private individuals, have had to struggle with the invasive. Spread by rhizomes, simple mechanical methods such as mowing are not an option (it can actually spread the plant, as can wildfires); however, officials recommend landowners try "pull-kill-plant" depending on the age of the plant. Pull new sprouts, apply herbicides (such as Habitat, effective against the invasive) and plant native plants along banks affected by Arundo donax.
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