Landscape Architect & Specifier News

JUN 2015

LASN is a photographically oriented, professional journal featuring topics of concern and state-of-the-art projects designed or influenced by registered Landscape Architects.

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Above, Left The permeable paver parking lot has a dose of 'Kolbold' gayfeather, 'Kim's Knee' high purple coneflower, dwarf prairie dropseed and Arctic fire dogwood. Right The Rain Garden's horticulture is red and northern pin oaks, 'Heritage' river birch, sweet flag (a tall perennial wetland monocot), golden Alexanders (yellow flowering perennial forb), fox sedge (perennial wetland grass), 'Blue Flag' Iris, and Spike Blazingstar, with 'Annabelle' hydrangea in the background. Below, Right A bike lane bisects the site, connecting the east side of the site to the parking lot; bicycle racks occupy the west end of the site. handicapped accessible. The 4,000 plus gallon cistern collects rainwater from the school's roof. A water gauge is mounted on the outside of the cistern showing how many feet of water have been collected. Gardeners can use 3 hose spigots at the base of the cistern to water the community garden plots, while overflow is released into the biology garden. The classroom/picnic plaza has cluster seating for 74 people with 4 handicapped accessible seats. Protected existing trees along the 77th Street parkway and newly planted trees throughout the site help to define space, provide shade, sequester carbon, improve air quality and improve the quality of life for site users. A specimen beech tree, affectionately called the "Knowledge Tree", is a prominent feature in the secondary entrance plaza. The "Knowledge Tree" complements the purple brick color of the architecture as do other herbaceous and deciduous plants used in a variety of locations around the building. Plants used around the site are thornless, non-poisonous, and produce little fruit if near paved or other developed areas. Shrub species are predominantly dwarf in character for security clearances. The highly diverse native plant palette makes the site function as an urban botanic garden for the STEM Academy's biology students. The use of potable water was minimized. No permanent irrigation system was installed. A water main line with quick couplers are located every 100' throughout the site for plant establishment and to maintain sport surfaces. Hose bibs are also provided around the building fa├žade. The extensive vegetated green roofs are a system of monolithic continuous media layers using sedum tiles. On the larger green roof area, expanded polystyrene foam shapes a berm to conceal an expansion joint and create visual interest from inside the school. 76 Landscape Architect and Specifier News (Continued on page 78)

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