2025 Design & Master Plan - South Dakota State University

2025 Design & Master Plan - South Dakota State University 2025 Design & Master Plan - South Dakota State University

30.06.2014 Views

planting methods Use suitable topsoil to establish finished grades in plant beds, maintaining minimum recommended topsoil depths. Leave room in the plant beds for the addition of compost. Till plant beds to a 12 inch depth. Add compost material as recommended, tilling it into the top 8 inches of the topsoil. Smoothly outline the edges of all planting beds where indicated on the plans. Rake the soil surface smooth and lightly compact. Set out all plantings beginning with the tree, shrubs, then perennials. Adjust spacing as necessary and install plantings. Refer to typical shrub and perennial planting detail in Figure 10.2. mulch All mulch to be used on campus shall be a shredded hardwood mulch placed directly on the prepared topsoil plant beds (no weed barrier fabric or plastic). Mulch shall be clean, fresh, and free from soil, rocks, diseased material and foreign organic and nonorganic matter. Mulch for tree and shrub beds shall be 3 to 4 inches deep after settlement. figure 10.2: typical shrub and perennial planting detail Mulch for perennial beds shall be 2 to 3 inches deep after settlement. a:16

trees The minimum recommended sizes for trees planted on campus are as follows: Deciduous Canopy Trees: 2 1/2-inch Caliper Deciduous Ornamental Trees: 2-inch Caliper Evergreen Trees: 6-7 foot Height Refer to the planting detail shown below and the “Preferred Tree List” included later in this document. Stake all trees 2 inches in caliper or greater. Use 1-1/2 inch by 1-1/2 inch hardwood stakes, driven outside of the edge of the root ball, but within the mulched area. Attach stakes with 1/4 inch twisted natural sisal rope and fabric tree strap. Tighten rope only enough to keep from slipping, still allowing for some movement. Assure that the bearing surface of the tree strap against the tree trunk is a minimum of 1/2 inch. In no case should the rope be in contact with the tree trunk. figure 10.3: typical tree planting detail a:17

trees<br />

The minimum recommended sizes for trees planted on campus are as follows:<br />

Deciduous Canopy Trees: 2 1/2-inch Caliper<br />

Deciduous Ornamental Trees: 2-inch Caliper<br />

Evergreen Trees: 6-7 foot Height<br />

Refer to the planting detail shown below and the “Preferred Tree List” included<br />

later in this document.<br />

Stake all trees 2 inches in caliper or greater. Use 1-1/2 inch by 1-1/2 inch<br />

hardwood stakes, driven outside of the edge of the root ball, but within the<br />

mulched area. Attach stakes with 1/4 inch twisted natural sisal rope and fabric<br />

tree strap. Tighten rope only enough to keep from slipping, still allowing for<br />

some movement. Assure that the bearing surface of the tree strap against the<br />

tree trunk is a minimum of 1/2 inch. In no case should the rope be in contact<br />

with the tree trunk.<br />

figure 10.3: typical tree planting detail<br />

a:17

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