Backyard ponds have become an exciting landscaping trend! Most homeowners want a pond to add ambiance to their yard or to simply enhance their outdoor living space. Goals range from fish collecting to plant collecting to just the sight and sound of water. Ponds create a respite from the techno-crazy world, and a haven for prized Koi and other wildlife. Yet few realize the countless environmental benefits to installing an ecosystem pond or water feature.
According to the National Gardening Association’s 2008 Environmental Lawn and Garden Survey, 9 out of 10 households believe it’s important to maintain their landscape in a way that benefits the environment. However, about only half of those are knowledgeable about how to maintain lawns and gardens in an environmentally-friendly way. Many don’t realize that by replacing some (or all) of their lawn with a pond or water feature, they can actually conserve water and energy, save money, and support the environment – not to mention reduce personal stress.
Lawns use A LOT of water
According to the University of Arizona, the average 15'x15' bermudagrass lawn uses over 5000 gallons of water per year. A typical residential lawn sprinkler system broadcasts about 10–18 gallons per minute, per valve or zone. By the way, broadcasting water like that increases evaporation and the lawn doesn’t really receive as much water as is being broadcast. So, if a lawn has two zones and waters for 15 minutes three times per week, the water consumption would range between 4,500 and 7,560 gallons per month. In Phoenix, that would equate to about $157.50 to $264.60 per month on your water bill.
Evaporation on a pond is the same as on a swimming pool: 1” per day per square footage of surface area during the hottest, driest months of the year (typically mid-May through mid-June). During the rest of the year, the evaporation is negligible. AND you’re not adding water during monsoon storms and general rain days. Unless you have one of those expensive timers that detects the moisture in the air and doesn’t water when it’s raining, your lawn gets watered no matter what. A pond will have an autofill device that only adds water when it’s needed.
Lawns require more maintenance than ponds, in general
Maintaining a lush lawn obviously requires regular watering, as pointed out above. But there’s also a LOT more that goes into maintaining a nice-looking lawn. You also have to fertilize it. When not done properly, runoff of excess fertilizer causes groundwater pollution. The EPA estimates that only 35 percent of lawn fertilizers applied ever reach the grass plant – the remainder ends up in our air or seeps into our water supply. During a typical year in neighborhoods across the country, over 102 million pounds of toxic pesticides are reportedly applied in pursuit of that perfect lawn and garden, says the National Coalition for Pesticide-Free Lawns. Is your “little patch of estate” worth that?
And you have to mow and edge it, enslaving the average man (or woman) for at least half a day on any given weekend. Aside from the time involved, about 54 million Americans mow their lawns each weekend, using 800 million gallons of gas per year, AND producing tons of air pollutants, according to the US Environmental Protection Agency (EPA).
Garden equipment engines emit high levels of carbon monoxide, volatile organic compounds, and nitrogen oxides, producing up to 5% of the nation’s air pollution (and a good deal more in metropolitan areas). A traditional gas-powered lawn mower produces as much air pollution as 43 new cars, each being driven 12,000 miles. Lastly, more than 17 million gallons of gas are spilled each year refueling lawn and garden equipment. To put that into perspective, that’s more than the amount of oil that was spilled by the Exxon Valdez in the Gulf of Alaska. And this all adds to groundwater contamination and smog, the EPA reports.
Ponds, however, reduce the need for more lawn pesticides and fertilizers. They require about 10 minutes of maintenance per week, and pay you back with hours of enjoyment. And they certainly don’t require any gas-powered equipment. As an added benefit, the debris and sludge collected by your pond filter can be used as a nutrient-rich fertilizer for your lawn, garden, and trees.
Don’t get us wrong, if you have a bunch of kids that need a football or soccer field to play on, then by all means, plant a lawn! Or you could make use of a nearby park and let the City deal with the time and cost of the maintenance. But if you’re looking for a low water use, low maintenance, super enjoyable and entertaining landscape option, you might want to consider an ecosystem pond or water feature.
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Barbi Holdeman, co-owner of The Pond Gnome, enjoys sharing their 17+ years of education & experience with you! She writes about Phoenix Ecosystem Pond Installation, Pond Maintenance, Wildlife around the Pond, Koi and Goldfish in the Pond, and the Pond Lifestyle. If you enjoy what she writes, please share it!