Horticulture: Special Topics-Horticulture

Identification and management of invasive plants.

Search by scientific name, characteristics, classes, and other features. Offers state checklists, posters, and 40,000 plant images.

Maintained by Herbarium Curator at the Cofrin Arboretum, University of Wisconsin-Green Bay.

Uses visual recognition software to help identify tree species from photographs of their leaves. Developed by researchers from Columbia University, the University of Maryland, and the Smithsonian Institution.

Joint project of USDA and Univ of Georgia.

Searchable database of foods, drugs, dyes and fibers of Native Americans, derived from plants.

A major regional seed bank in the American southwest and a leader in the heirloom seed movement.

A consortium of over 235 government and non-government agencies working "...collectively to solve the problems of native plant extinction and native habitat restoration, ensuring the preservation of our ecosystem. "

A partnership between the American Public Garden Association, EcoAmerica, and the National Oceanic and Atmospheric Administration and that focuses on climate change solutions and engaging visitors.

Promotes broad understanding of plant and animal phenology and its relationship with environmental change.

Tree and plant advice.

Covers all aspects of horticultural problems from home to commercial care.

Pamphlets and reports tackling problems related to lawn, garden, and natural resources. Articles can be read online or purchased.

Founded in 1977 in Milwaukee, WI, promotes environmentally sound landscaping practices to preserve biodiversity through the preservation, restoration and establishment of native plant communities.

To provide the scientific information needed to conserve and manage the nation's biological resources. Located in North Dakota.

Provide sustainable landscape information to the public and to the horticulture/landscape industry.

"An international undertaking by leading herbaria to digitize and make available plant type specimens and other holdings used by botanists and others working in plant science every day. Partners include more than 147 institutions in 52 countries." Some resources require free registration to access.

The World Flora Online will be an open-access, Web-based compendium of the world’s plant species. It will be a collaborative, international project, building upon existing knowledge and published floras, checklists and revisions but will also require the collection and generation of new information on poorly know plant groups and plants in unexplored regions.

Search for insects by name, type, and by photo.

List of resources to help resolve pest management and related problems.

From Cornell University, this website provides photographs and descriptions of biological control (or biocontrol) agents of insect, disease, and weed pests.

Part of a nationwide pest management information network established by the U.S. Dept. of Agriculture to respond quickly to information needs in both the public and private sectors.

Offers information about health, safety, regulation, education, and use of pesticides in home and industry.

Read, save, or print this 8-page pamphlet from the UW-Extension Office.

Links to water resources educational pamphlets. Scroll down to Shoreland Management for free articles about stewardship practices. Prepared by University of Wisconsin Extension staff.

"The most important and relevant non-profit organization for the field. It is a worldwide group engaged in the science and application of using plants to deal with environmental problems."