12. 12
Soil Amendment
Eastern Washington loses
more than
10 tons of soil per acre per
year
to rainfall runoff
Water-Saving Landscaping
April
18, 2010
13. 13
Native Plants
Tolerate temperature range
Tolerate drought
Prevent erosion
Support natural ecosystem
Attract pollinators
Need little or no
maintenance
Sustainable
Water-Saving Landscaping
April
18, 2010
15. 15
Temperature RangeTítulo del gráfico
120
100
80
60
40
20
0
Minimum
Average
Winter
Water-Saving Landscaping
Spring
Summer
Maximum
Fall
April
18, 2010