Oregon State University Extension Gardening
Publications specific to Pacific Northwest growing conditions
Access reliable, research-based gardening information through our curated collection of resources. From university Extension publications to online diagnostic tools, these materials represent the same sources our Master Gardener volunteers use to answer your gardening questions.
Land-grant universities across the country provide free, science-based gardening information through their Extension programs. These publications are written by university faculty and undergo peer review, ensuring accuracy and reliability.
When you cannot visit our Plant Clinic in person, these online tools can help you identify plant problems:
The UC Integrated Pest Management Program offers extensive resources on environmentally responsible pest management approaches.
Healthy soil is the foundation of a successful garden. Learn about soil testing, amendments, and composting to build fertile ground for your plants.
IPM combines cultural, biological, and chemical strategies to manage pests with minimal environmental impact.
Learn water-wise gardening techniques, native plant gardening, and environmentally responsible landscape practices.
From vegetable gardening basics to advanced techniques like succession planting and season extension.
Timing is everything in gardening. Extension gardening calendars provide month-by-month guidance for:
For deeper exploration of gardening topics, we recommend these authoritative books:
Explore our other resource pages for specific topics: