140 LANDSCAPING STANDARDS
Table 17.140.040(A): Landscape Design Types | |||||
|---|---|---|---|---|---|
Landscape Design Type | Example Ground Cover | Example Shrubs | Example Trees | Minimum Plant % Coverage at Maturity | Resources |
Fire-safe | 1. Dianthus 2. Mahala mat 3. Kinnikinnick 4. Sod, rock, or compost | 1. Oregon boxwood 2. Oregon grapeholly 3. Burning bush 4. Oceanspray | 1. Ponderosa pine 2. Oregon white oak 3. Red oak 4. White ash | 60% | 1. OSU Fire Resistant Plants for Home Landscapes 2. Fire-Resistant Plants for Eastern Washington |
Low water usage | 1. Hens and chicks 2. Thyme 3. Stonecrop 4. Sulfur buckwheat | 1. Russian sage 2. Fernbush 3. Spirea 4. Sagebrush | 1. Ponderosa pine 2. Chokecherry 3. Rocky Mountain maple 4. Western larch | 50% | 1. WaterWise Gardening In Central Oregon 2. Ashland Water Wise Plant List |
Native plant/pollinator supportive | 1. Strawberry (beach, wild, or woodland) 2. Oregon wood-sorrel 3. Kinnikinnick | 1. Oregon grape 2. Bristly manzanita 3. Huckleberry (red or evergreen) 4. Pacific rhododendron | 1. Pacific madrone 2. Oregon white oak 3. Douglas fir 4. Western crabapple | 70% | 1. Gardening with Oregon Native Plants 2. Enhancing Urban and Suburban Landscapes to Protect Pollinators |
Traditional | Any combination of the above | Any combination of the above | Any combination of the above | 80% | All resources listed in the other landscape design types |
Table 17.140.040(B): Minimum Landscaping | ||||
|---|---|---|---|---|
Net Lot Width | Amount of Ground Cover | Number of Shrubs | Number of Trees | Minimum Plant % Coverage at Maturity |
21 – 75 feet | To reach required ground coverage | Four one-gallon shrubs or accent plants | One tree at least six feet in height, and one and one-half inches in caliper measured six inches from the root flare | Dependent on design type |
76 feet and above | To reach required ground coverage | Six one-gallon shrubs or accent plants | Two trees at least six feet in height, and one and one-half inches in caliper measured six inches from the root flare | Dependent on design type |