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Basic Lawn Care

by Dan Eskelson of Clearwater Landscapes

Though lawns use a large portion of our water, fertilizer and time resources, we Americans seem to be married to the concept of the lush, green expanse. For those in areas prone to drought, alternatives to the traditional lawn should be considered...for those of us who, so far, have sufficient water, it still makes good sense to conserve as much of our resources as possible. The following are strategies designed to grow a successful lawn with minimal toxicity and resource use.

Keep the grass healthy by cutting with a sharp blade - dull blades tear and open the grass to disease organisms. Leave clippings on the lawn - they will supply at least a third of the yearly nitrogen requirement as well as building the health of the soil with beneficial organic matter. Mulching mowers are fairly efficient, especially if the turf is completely dry.

Unless you're practicing your golf game on the lawn, there's no reason to cut the grass short. Taller grass has more leaf area for absorbing the sun's energy, is able to compete with weeds better than short grass, and develops deeper root systems which are more drought tolerant. It's important to cut no more than one third of the grass blade at each mowing - this may mean cutting more than every seven days during the spring surge growth.

Lawn grasses require three to four pounds of nitrogen per 1,000 square feet per year...clippings left on the lawn can supply up to two pounds per year and a yearly topdressing with compost can add another pound of nitrogen along with the beneficial organic matter. In many cases, commercial synthetic fertilizers are not necessary!

Nature abhors a monoculture - that is, nature will always be trying to grow weeds in your lawn. By mowing high, 2.5 to 3 inches, many weeds will be suppressed by the grass. Persistent weeds can be removed with one of several types of extraction tools.

Turf scientists discovered several years ago that corn gluten meal killed many weed seeds as they sprouted. We began using this product two years ago with excellent results; applied in early spring and late summer, it will control dandelion, clover and many other lawn weeds. Use only on established lawns, since it also will kill grass seedlings. An additional benefit is its nitrogen content - an organic weed 'n feed!

Irrigation should be supplied to the lawn only when needed - excessive irrigation can lead to diseased turf and increased weed presence. Supply water as deeply and infrequently as possible...frequent, light irrigation encourages shallow rooting and poor drought tolerance. To reduce loss to evaporation, water in the early morning hours.

To minimize resource use, and to limit the possibly harmful effects of toxic chemicals, we may need to reset our priorities - is it absolutely necessary to intensively cultivate large areas of turf, while excluding even the occasional weed? Personally, I look forward to some cheerful color in my home lawns each spring - as long as the grasses are well taken care of, they'll remain competitive and dominant. And I'm very happy to have such lush growth without the use of stinking chemicals.

About the author.... Dan Eskelson has had his hands dirty since the late '60's, learning his craft as a freelance gardener, orchard worker, golf course superintendent, commercial landscaper and landscape designer.  His company, Clearwater Landscapes, provides online design services to residential and commercial clients.  They have a local presence in Bonner County, Idaho and Pend Oreille County, Washington, though Clearwater's focus is shifting rapidly from work in the field to design and consultation for clients throughout North America. Their online presence has grown steadily with a corresponding increase in online design work.

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