Gardening

Using sustainable and research-based techniques, learn how to grow your own vegetables, connect with other gardeners, or use Ask an Expert to seek gardening advice. 

Things to do in December

  • Turn the compost pile and protect from heavy rains, if necessary.

  • Check stored flower bulbs, fresh vegetables, and fruits for rot and fungus problems. Discard any showing signs of rot.

  • Western Oregon: Good time of year to plant trees, and landscape shrubs.

Gardening Tips

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Be on the lookout for symptoms of tomato late blight
Late blight, a fungal disease that infects tomatoes, usually shows up in Oregon gardens as weather turns wet and humid, and it’s dispersed by the wind and rain.
sunflower
Let annuals go to seed in the fall
Good seed setters include sweet peas, sunflowers, calendula, borage, nasturtiums and annual delphiniums.
Deadheading a rhododendron
Should you deadhead your flowers?
Deadheading makes sense for repeat bloomers and highly modified annuals, but for most other plants it is a matter of appearance and the personal taste of the gardener.
squash
Mother Nature may need help to pollinate squash and cucumbers
Heat-loving squash and cucumber plants will take advantage of hot weather to blossom and set fruit. Successful pollination depends on insect pollinators, such as honeybees and native bees, as well as timing and location.
Buckwheat
Buckwheat makes a good summer cover crop for gardens
Need a summer cover crop to add nutrients to your garden's soil? Try planting buckwheat.

Gardening Courses

Master Gardener Online

Learn the art and science of growing and caring for plants, and even become a Master Gardener, through this two-option online course.

Become a water-wise gardener

Plant an economical and environmentally friendly and garden with the help of the WaterWise Gardening online course series.

Popular Publications

A new publication from OSU Extension shows a full-circle approach to gardening on school grounds
Use this self-guided learning module to find information on grapevine nutrient needs and how to diagnose problems with disease, insects, drought, sunburn, and herbicides.
Learn how to create a "cloche" that can be used to protect your plants from cold weather.
If you lack space for a garden, consider raising vegetables in containers.
Making a poor garden better often begins with the soil. If your garden soil is poor, consider giving it some help.
Strategies to to keep the bugs out of your garden.
Improve your soil by adding organic matter and creating raised beds.
Basic instructions on how to prune your trees.

Question of the Week

I found this growing in my garden and I'm not sure what it is. My girlfriend said it looks Sinister! Can you tell me what this is? My best guess is maybe something to do with dill because I had some dill plants there, but they kind of look like mushrooms or alien eggs. There were also some zucchini plants there.

Upcoming Events

Jan. 04, 2018 10:30am - 11:30am
Jan. 22, 2018 (all day)
The Oregon State University Master Gardener™ Program is an Oregon State University (OSU) Extension Service …
Feb. 01, 2018 10:30am - 11:30am
Mar. 01, 2018 10:30am - 11:30am
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