Cooperative Extension Services
Gardening Publications

Although the emphasis in their publications is rural and agricultural, there are excellent resources in foods and nutrition, consumer education, family life, health and safety, horticulture that even city folk can use! Please be aware that the agricultural information is geared towards that state.

Agriculture Extension Services Search

This is a Google Custom Search engine designed to search only U.S. land-grant universities and extension services. It includes almost every land-grant or extension institution in the U.S.

Web Sites

• e-answers
  A searchable Web site that provides reliable, research-based information on a wide range of Extension or Outreach-oriented subjects. From this source you can access publications from Land Grant universities around the nation. You can search for things as simple as "daffodils" and "mesclun".
• Hort Corner
  This website from the University of Illinois Extension includes a section on Selecting Trees for Your Home that can be used in the Pittsburgh region, as well as Composting for the Homeowner.

  North Carolina State University: Horticulture on the Internet
  A great effort to group cooperative extension horticultural publications by topic! But do be aware that the publications are from around the nation and do make sure you don't follow advice for Florida or California.

• USDA Cooperative State Research, Education, and Extension Service
  This is the government program which advances programs and research in in the food and agricultural sciences and related environmental and human sciences through cooperative programs at state agricultural colleges.

Pittsburgh Region

• Cooperative Extension in Allegheny County: Horticulture
  Includes program information and various pamphlets from Penn State.

Pennsylvania

• Penn State Cooperative Extension & Outreach
  Some of their publications are available online in pdf format.
  • Department of Horticulture Extension Resources

Nearby States

These are likely to have publications that are applicable to gardening in Pennsylvania.

• Ohio State University Extension
  
  • OhioLine
    • Yard and Garden
      Includes a huge collection of publications about the Home, Yard, and Garden, including cold frame construction, poison ivy identification, overwintering plants, controlling wildlife, composting, lawn care, information on specific plants such as raspberries, blueberries, grapes, strawberries, apples, wisteria, clematis, hardy kiwi, asparagus, cucumbers, lettuce, garlic, and mushrooms.
  • Plant Facts
    PlantFacts has merged several digital collections developed at Ohio State University to become an international knowledge bank and multimedia learning center.
• West Virginia University Extension Service
  
  • Horticulture and Gardening