Now showing items 1-20 of 21

  • A gardner's primer to Mycorrhizae : understanding how they work and learning how to protect them 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2017-07)
    Mycorrhizae are symbiotic associations between many plants and the beneficial fungi that colonize their roots. Gardeners are often unaware of these relationships and may inadvertently injure or kill the beneficial fungi ...
  • Are native trees and shrubs better choices for wildlife in home landscapes? 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2018-04)
    Many gardeners prefer to use native plants in their landscapes. Part of this preference is the widespread belief that native species are better ecological choices, especially in providing habitat for native wildlife. Most ...
  • Biochar : a home gardener's primer 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University. Extension., 2014-09)
    Home gardeners may have heard about biochar, but may not understand exactly what it is and what it does. This fact sheet provides a quick overview of what biochar is, the science behind its manufacture and use, and how it ...
  • Cornmeal and corn gluten meal applications in gardens and landscapes 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2019-03)
    Cornmeal and corn gluten meal, both products from corn milling, are readily available to home gardeners. This fact sheet reviews the horticultural science behind each of these products and explains whether they have a legal ...
  • Do black walnut trees have allelopathic effects on other plants? 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2019-03)
    Gardeners have heard that black walnut trees (Juglans nigra) contain a toxic chemical called juglone that will kill any other plants growing nearby. This phenomenon is called allelopathy, and, in recent years, many other ...
  • Dust mulch efficacy in gardens and landscapes. 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University. Extension., 2015-07)
    Dust mulches are made by breaking up the top few inches of the soil with a hoe or rake, creating a finely textured layer. This publication on dust mulch discusses the performance of dust mulches compared to organic mulches ...
  • Epsum salt use in home gardens and landscapes 

    Chalker-Scott, Linda; Guggenheim, Rich (Pullman, Washington : Washington State University Extension, 2018-09)
    Epsom salt is a popular soil amendment for home gardeners with anecdotally-reported value as a fertilizer and pesticide. However, it is not registered as a pesticide, nor should it ever be used as a pesticide. This publication ...
  • Gypsum use in home gardens and landscapes 

    Chalker-Scott, Linda; Guggenheim, Rich (Pullman, Washington : Washington State University Extension, 2018-09)
    Gypsum has long been promoted as a soil amendment for home gardeners who wish to improve their soil structure. Popular books and websites claim that gypsum will loosen compacted soils and improve drainage. Gypsum is also ...
  • How are Hydrangea flower colors determined? 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2018-09)
    The flowers of many hydrangea cultivars run the gamut of colors from pink to purple to blue. Some newer cultivars are “chameleon” hydrangeas, whose colors change throughout the season. All of these colors are due to pigments ...
  • Hugelkultur : what is it, and should it be used in home gardens? 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2017-08)
    Hügelkultur is a German term meaning hillock or mound cultivation. It is a method of building garden and landscape beds using woody material, garden debris, and soil arranged in long, tunnel-shaped mounds. This publication ...
  • Lady beetles : should we buy them for our gardens? 

    Chalker-Scott, Linda; Bush, Michael R. (Michael Robert), 1962- (Pullman, Washington : Washington State University Extension, 2017-07)
    Lady beetles are a popular biocontrol method for aphids in home gardens and landscapes. Many gardeners purchase these insects at nurseries, garden centers, and online. This publication will discuss the drawbacks to using ...
  • Organic fungicides for the home garden 

    Calvert, Ilana M.; Chalker-Scott, Linda (Pullman, Washington : Washington State University. Extension., 2014-02)
    There are many products available to home gardeners for managing diseases caused by fungal pathogens on plants. Effective products include those derived from natural substances, in addition to the synthetic chemicals ...
  • Pesticide ingredient : horticultural oil 

    Chalker-Scott, Linda; Daniels, Catherine H., 1957- (Pullman, Washington : Washington State University. Extension., 2015-10)
    Horticultural oils are manufactured from either petroleum or vegetable oils, to be used as a pesticide on plants. Regardless of the source, these oils kill eggs, larvae, and nymphs of insects and mites by smothering them.This ...
  • Potential contaminants in residential rain barrel water 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2017-06)
    Residential gardeners often collect rainwater to supplement summer irrigation. They may also use rainwater as an unchlorinated water source for aquatic plants and animals. However, rooftop runoff can be contaminated with ...
  • Rubber mulch use in home landscapes 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University. Extension., 2015-04)
    The purpose of this fact sheet is to summarize the current scientific research on the use of recycled rubber products in home landscapes.
  • Scientific literacy for the citizen scientist 

    Chalker-Scott, Linda; Daniels, Catherine H., 1957- (Pullman, Washington : Washington State University. Extension., 2016-03)
    Knowledge of the scientific method leads to scientifically literate citizens who can read science articles and evaluate the quality of the information presented; it allows a person to distinguish science from pseudoscience ...
  • The efficacy and environmental consequences of kelp-based garden products 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2019-09)
    Processed seaweeds, especially kelps, are heavily marketed to gardeners as biostimulants, fertilizers, soil conditioners, disease suppressants, and environmental stress reducers. This publication reviews the published ...
  • Using arborist wood chips as landscape mulch 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University. Extension., 2015-01)
    This fact sheet covers the benefits of using arborist wood chips as mulch in the home landscape. Gardener's will learn about mulch pests and disease, and safety issues in the frequently-asked-questions section; plus a handy ...
  • Using cereal straw bales in home gardens 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University Extension, 2019-09)
    Once a popular commercial method of growing commercial crops, straw bale gardening is experiencing a resurgence among home gardeners. This publication addresses the scientific research behind straw bale gardening and ...
  • Using coffee grounds in gardens and landscapes 

    Chalker-Scott, Linda (Pullman, Washington : Washington State University. Extension., 2016-04)
    Americans consume nearly 700 million cups of coffee a day (Zagat 2015), which means we generate a lot of coffee grounds in the process. Putting coffee grounds to use in the garden makes both economic and environmental ...