- General Plant Biology
This site includes information on angiosperms, gymnosperms, respiration, photosynthesis, seed to plant, flower to senescence, plant growth and many more topics.
- USDA Plant Classification
use this site to determine the classification of a plant (from the plant kingdom all the way down to the cultivar.
Plant Problems (Diseases, Insects, and Abiotic)
- Focus on Plant Problems (Insects and Diseases)
- The Bug Review
- Identifying Diseases of Vegetables
Plant Selection and Management
- Sustainable Urban Landscape Information Series
- Growing Vegetables at Home
- Fruit Production for the Home Gardener
- Tree Fruit Production