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7. Maintain Properly                                              Perennials                           Shrubs             ...
South Central Idaho is associated with the High Altitude          Think about the purpose of the planting. For example:   ...
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Xeriscape Gardening: 7 Principles - Sawtooth Botanical Garden, Ketchum, Idaho


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Xeriscape Gardening: 7 Principles - Sawtooth Botanical Garden, Ketchum, Idaho

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Xeriscape Gardening: 7 Principles - Sawtooth Botanical Garden, Ketchum, Idaho

  1. 1. 7. Maintain Properly Perennials Shrubs Day Lily Curl-leaf Mountain MahoganyYour garden will flourish with routine and proper Hermerocallis sp. Cercocarpus ledifoliusmaintenance. In addition, you will save time, water Height: 1’-3.5’ Height: 4’-15’and money! Blanketflower Lilac Gaillardia aristata Syringa vulgaris Height: 2’-3’ Height: 8’-20’• It is important to keep irrigation systems running properly. Ask your landscaper to assess your irrigation for needed improvements. Sulphur Buckwheat Eriogonum umbellatum Height: 6-12” Fernbush Chamaebatiara millefolium Height: 7’ Xeriscape Gardening• Change the timers on your sprinklers as the season Lovely Penstemon Syringa or Mock Orange 7 Principles changes and when plants become more established. Penstemon venustus Philadelphus lewisii Height: 2’-4’ Height: 5’-9’• Prune and fertilize when needed. Research what your plants require first. Firecracker Penstemon Trees Penstemon eotonii• Weed Height: 2-3’ Chokecherry• Plant in the spring and fall. Prunus virginiana Dark Blue Penstemon Height: 20’-30’• Be sure to keep your lawn at least 2-3” tall. A Penstemon cyaneus Height: 2’-3’ Bristlecone Pine longer cut promotes deep roots and a living Pinus aristata mulch, ultimately requiring less water use. Prairie Coneflower Height: 20’-30’ Leave your clippings on the lawn. This will help Ratibida columifera Height: 1.5’ -3’ Sensation Box Elder to improve soil structure, fertility, and water retention. Acer negundo ‘Sensation’ Orange Globe Mallow Height: 30’Sources: Sphaeralcea munroana (low growing) GroundcoversUniversity of Idaho Cooperative Extension System Publication: Blue Flax Snow in SummerCIS:990. Linum perenne var. lewisii Cerastium tomentosum Height: 12”-18” Height: 8”-12”Water, Denver; Xeriscape Color Guide. 1998. Columbine Pink Chintz ThymeSawtooth Botanical Garden’s Home Demonstration Garden Thymus praecox arcticus cv. Aquilegia canadensis Height: 1’-2’ Height: 1”-2” Kinnikinnick Vines Arctostaphylos uva-ursi Height: 6-12” Virginia Creeper (Part Shade Plant) Parthenocissus quinquefolia Hen and Chicks Hops Sempervivum tectorum Humulus lupulus Height: 3”-6” Our Mission The Sawtooth Botanical Garden is a community resource showcasing native and cultivated plants that flourish at high altitude. The Garden connects Sawtooth Botanical Garden people to the region’s unique beauty and fosters is located on the corner of environmental stewardship through education, Highway 75 & Gimlet Road • 11 Gimlet Road Ketchum, Idaho 83340 events, displays and plant collections. P.O. Box 928 Sun Valley, ID 83353This brochure was made possible by the generosity 208.726.9358 • 208.726.9358 • of the Lightfoot Foundation.
  2. 2. South Central Idaho is associated with the High Altitude Think about the purpose of the planting. For example: For example: What pH does your plant prefer? Is the plantSagebrush-Desert Biome. The Wood River Valley only Do you want to add color, screening, attract birds and more partial to sandy or clay soils?receives an average rainfall of 1.4” in the spring and pollinators, or simply wish to reduce your lawn? Till in organic matter such as shredded bark, leaves,.7” of rain in the summer. This arid climate makes water Think about tree function, utilities, decks and patios. straw, peat moss, or compost. This will help the soilconservation a top priority in our region. Idaho ranks Think about plant texture, color, bloom time, and plant size. hold moisture, improve aeration, and ease drainage.among the top four states in the nation for fresh water Be sure to keep in mind the plant nutrient needs so youconsumption! Irrigation accounted for 85 percent of the Group plants by: do not overdo it!water withdrawn in Idaho in 2005. Avoid compaction of soil in order to maintain air spaces. • Water needs. Create different water zones according (USGS Fact Sheet 2009-3098) If planting a lawn, aerate to avoid long term compaction. to the plant needs. • Soil typeDo your part and create a sustainable • Microclimate 5. Use Mulchbackyard landscape! • Maintenance requirements Mulch is defined as either organic material such as bark, compost and straw, or inorganic, such as rock orWhat does xeriscaping mean? 2. Design Practical Turf Areas landscape fabric. Avoid using any plastic because itXeriscaping is the use of drought tolerant plant species prevents water and air exchange. Lay down 3-5” of mulch When sketching your lawn area ask yourself:combined with creative landscaping practices to conserve after planting. • How much lawn will I actually use?water. It does not mean zero-scaping or an absence of all Limit the lawn area to that amount! Mulching helps to:vegetation and beauty. • What is the location, size and shape of the lawn? • Retain moisture • Do you really need long skinny strips? • Inhibit weed growthWhat are the benefits of xeriscaping? It is easier to maintain and water large round areas. • Prevent soil compaction • Could you replace some lawn with a water permeable • Moderate soil temperatureThe biggest benefit is the reduction of water usage. Waterconservation is extremely important in the arid west. hard-scape, for example a patio deck? • Could you use a more drought-tolerant grass such 6. Irrigate EfficientlyLandscaping needs usually account for 30-50% of as Buffalo Grass or a turf fescue? Proper irrigation is crucial when designing yourdomestic water use. xeriscape garden. Follow these tips:Other benefits include: 3. Use Appropriate Plants • Water deeply and less often. This encourages the• Low maintenance Here in Idaho, you’ll want to choose plants that are growth of deeper roots. If you water too often your• Protects water quality cold hardy and can endure hot summer temperatures. plants will grow shallow roots and become dependant Use natives or well adapted exotics. on the frequent irrigation.• Increases the health and beauty of your surroundings Choose perennials. Annuals are generally high maintenance • Water early in the morning or late at night to• Decreases the need for pest control avoid evaporative loss. and require greater amounts of water.• Saves the homeowner money • Drip, pop-up, and micro-sprays are the recommended Group plants with the same water needs. forms of irrigation. Water Zones could be grouped as: • Automatic timers are the easiest way to makeSeven Principles of Xeriscaping 1. Little or no irrigation (once established) sure your garden is successful. They also ease 2. Monthly irrigation maintenance.1. Plan and Design 3. Irrigation every 2 weeks • Water according to each seasonal demand.This first step applies if you are redesigning an existing 4. Weekly irrigation and irrigation 2x per week For example: in spring and fall you will generally 5. High water usage area (ie: Vegetable Garden) water less than or planting a new one. Sketch existing structuresand vegetation and note what you hope to change oradd to your landscape. In addition, identify other existing 4. Improve the Soilfeatures on your property such as: slope, view, sunlight, Get a soil analysis before you start planting.shade, drainage & water availability. Learn the soil needs of each plant you are adding.