Native grass hydroseed development : establishment protocols for three native Hawaiian plants on roadside areas.
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2012-08-01
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Abstract:The biggest mistake with using native plants on Hawaii’s roadways is to assume that native plants do not require
nutrient enhancement or supplemental water to establish on these sites. The establishment of native plants will
require a detailed analysis of the site in terms of access to irrigation water, established weeds and other ground
covers as well as suitability to a mixture of desired native plants in the final landscape setting. This document
provides protocols that start with proper preplant site preparation to purge weedy species and leave the site with a
depleted capability to repopulate with undesirable vegetation. This is followed by planting and establishment
techniques of pili grass (Heteropogon contortus), akiaki (Sporobolus virginicus) and mauu akiaki (Fimbristylis
cymosa). The protocols provided in this planting handbook were developed with the understanding that
contractors have a defined period to finish a job and that many challenges exist in establishing a persistent
landscape composed of native Hawaiian plants.
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