05-16-1988 Planning Packet - Laserfiche WebLink

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¥*. *<.•I sugeesr. the following goals for gi*ing direction to the replanting: General plant characl«risiticsa) tolerant to high pH, liaestone soils for slopeb) drought tolerant cl sun tolerantd) native originse) coepleaentary to adjacent sitesRe-establish transition areas at the north and south extreinities of the site to the adjacent properties as a visual transition to the open area of the restoration work. Establish plantings at the top of the slope to help prevent erosion above the restored area which could undernsine the llraesione. Establish a planting cover on the main limestone slope a) provide consistent cover over the stone. b) low to allow identification and removal of weed trees which could be a problet in future Establish plants on mid-level area. a) Vigorous root mass b) Retain grasses as nurse crop Provide watering capabilities which are non-erosive. the following specific actions for planting: The north and south transistion areas should be planted with White Oak, Ironwood, Black Chokeberry and Bush Honeysuckle. ■^he vard above the slope should be planted with a rai* of Black Chokeberry, Isanti Dogwood, Creeping Juniper and Tawny Daylillies.« The main limestone slope should receive topsoil In all joints to the full depth of the stone mass. This will provide a full depth soil profile for plant growth, eliminate air pockets below the root zone which will inhibit root growth and are potential settlement areas. This can be asccomplished by washing the soil into the voids in a series of successive operations. Thoses jc^nts where no plants are to be gro*'. should have no soil in the top 1.. minimize growth location for weed seeds. The main limestone slope should be planted with Engelmann Ivy. - Plants should be located at each major joint intersection. The mid-level area should be planted with Eastern Redcedar and Isanti Redtwig Dogwoed. All plants on the slope should be as small as practicable so as to allow them to acclimate to the conditions of the site All plants should be mulched with shredded hardwood bark. Many of these plants can be observed in the wild and under cultivation in similar circumstances. Locally, the Mississippi River gorge has abundant examples of most of these plants growing in Platteville limestone. Similarly, the bluff tops along the Minnesota River have most of these plants growing under similar soil and climatic conditions. Also, the Shakopee limestone has been used for years as a mulch in landscape plantings. Finally, the use of Engelmann Ivy is recommended as a cover on rough sites and as a vine for buildings because of its ability to c ing w its adhesive dies. The Bell Museum of Natural History at the U of M has an entire wall of liraesione covered with this plant. P •••\ v;-- imM