Lawn and Landscape Irrigation

You hear these terms – “the dead of winter” and “dead to the world”, but what do they really mean?  In most cases, they’re exaggerations or synonyms for other situations; in this case, really cold weather with no end in sight and really, really tired. In the plant world, the question of “is this plant dead?” comes up quite frequently, especially in winter, and especially with broadleaf evergreens such as arborvitae, yews, holly, boxwood and Oregon hollygrape.

When a tree fails, it is sometimes difficult to determine the cause.  In many cases, it is due to a failure to spread the roots out in the planting hole or simply planting it too deeply.  Doing so leads to girdling or lack of an adequate amount of oxygen, resulting in death.  Other than the correct planting procedure, lack of good follow-up care is the next most common cause.  Each is very important in ensuring a successful planting.  Just like planting errors, many follow-up procedures can be done improperly or forgotten altogether.

The excess rain this year is a change from many years where we are already worried about drought stress on our landscapes. However, excess moisture is causing problems in our landscapes this year from fungal diseases as well as nutrient deficiencies. Chlorosis

Water is essential to life and has no substitute; hence, water-wise practices that conserve and protect water resources are something we all need to use.  During the growing season, it is estimated 40 percent or more of water use is for landscape irrigation. In many cases, the water used for this purpose is water that has been treated to drinking water standards. Plants do not need drinking quality water like we do.

Water conservation is important in home and business landscapes. While leaving automatic irrigation systems turned off, and only turning them on when plants need water, is a much needed practice change in many residential and business landscapes, selecting drought tolerant plants is also important. This article focuses on drought tolerant shrubs for different functions. While listed as drought tolerant, keep in mind plants need established roots to develop tolerance to dry sites. It is often a deep or extensive root system that makes a plant drought tolerant.

While we can’t ever control or even predict the weather, it is important to have a plan on how to deliver water to our home gardens during the hot, dry months of the summer. While Nebraska may be the capitol of crop irrigation systems, many home gardeners don’t give quite as much thought about water management and delivery in their home vegetable gardens or landscapes. Aside from reducing water need through some good management practices, delivering water in an efficient and sustainable way is important when planning and planting our home gardens. 

With spring weather finally in the forecast, I get excited thinking about my gardening activities for the summer. One of the things that is always on the front of my mind is watering. Will this be another dry year, a normal year (if Nebraska even has normal), or a wet year.

Planting for Water Savings Spring will be here before we know it, which is very exciting for plant enthusiasts. We can get outside and do some cleanup once it starts to get warm. Don’t get too excited though, winter could still show up for a couple more months. One thing you can do now, though, is plan your garden. Choose Well-Adapted Plants

As we begin a new year and will soon be thinking about lawns and landscapes, here is a reminder to focus on water. A limited resource we can’t live without. A New Year’s landscape resolution can be to conserve and protect water resources.  Now is a good time to analyze past growing seasons. When the weather was dry, were there plants that needed more frequent irrigation to prevent them from wilting? Could these be replaced with drought tolerant plants?

It’s hard to think about our plants in the winter months. It is even harder to realize that they are still alive and sometimes need care in the winter months. Once plants go dormant for the year many people believe that they need nothing until spring, but that isn’t always the case, especially in years with low or no snow or rain throughout the winter months.

Following are effective strategies for managing lawns during periods of hot and dry weather: 1. Learn to recognize wilting in turf plants. It is relatively easy to recognize wilting on a houseplant. The leaves droop and the stem may wither, and the whole plant may have a “dull” appearance. Because turf plants are much smaller and thinner than houseplants, it is much more difficult to recognize drought stress in turf plants.

In your lawn is overly shaded and/or has poor drainage, moss may be a problem.  Moss is a fast growing, shallow rooted plant that covers the ground, smothers grass and exhausts food reserves from the soil. When moss appears in a lawn, it is usually because growing conditions for turfgrasses and landscape plants are adverse, usually too little light and air circulation.  Other conditions favorable for moss invasion include soil with poor aeration and percolation, compaction, low fertility and high acidity or alkalinity.

Do you have trees growing right in the middle of your lawn? Do you swear under your breath every time you mow, having to trim around them and practice some fancy footwork trying to maneuver the mower around the trunk? If so, perhaps it's time to redesign your landscape, separating the grass and all of the other plants. If you are building a new home, or moving to one with little or no landscaping, you can avoid this maintenance nightmare by simply thinking of turf as a part of the landscape unto itself.

Water should never be applied at a rate faster than it can be absorbed by the soil. Soil properties that govern water infiltration (movement of water into the soil) are texture and structure.

Once good soils are in place, create water zones. Water zones are distinct sections of your property which contain plants with similar water needs. Group ornamentals into H-M-L zones in the landscape. Keep each distinct plant group by themselves – set watering minutes per zone accordingly.