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Ohio State University PlantFacts - http://plantfacts.osu.edu/
Collection of horticultural resources, including a search engine drawing from U.S. university factsheets, plant image database, how-to videos, illustrated FAQs, and glossary. |
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Hort.net - http://www.hort.net/
Offers a collection of garden reference materials, including a plant gallery and profiles, archives of mailing lists, gardening news, and links. |
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Exploratorium: Science Of Gardening - http://www.exploratorium.edu/gardening/
Features articles and videos on several topics, including gardening with nature, carnivorous plants, soils, fruits, and vegetables, propagation, and plant reproduction. |
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Garden Ideas - http://www.gardenideas.com/
Articles and advice on a variety of gardening topics. |
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MyGardenGuide - http://www.mygardenguide.com/
Offers plant database with photos and summary information, questions and answers on various garden topics, and a garden weblog. |
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Yardener.com - http://www.yardener.com/
Lawn and garden resources for homeowners whose garden is not their hobby. Includes information and care data for many plants, shrubs, and trees, and dealing with pests and problems. |
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LoveToKnow Garden - http://garden.lovetoknow.com
Short informational articles on gardening topics, vegetables, and ornamental plants, contributed and edited by users. |
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Pioneer Thinking: Gardening Center - http://www.pioneerthinking.com/gardening.html
Information and tips on outdoor and indoor gardening. Many articles grouped by topic. |
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Let's Go Gardening - http://www.letsgogardening.co.uk/
General gardening site, with versions geared towards US and UK gardeners. Tips and articles, informational resources, links to events, societies, and public gardens, and a forum. |
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Garden Terms - http://www.gardenterms.com/
Gardening dictionary with brief definitions of a large number of terms, optionally arranged by category. |