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. Watch a video about the OSU Master Gardener program in Newport, Oregon.

Things to do in December

  • Monitor houseplants for adequate water and fertilizer. Water and fertilizer requirements generally are less in winter.

  • Monitor spruce trees for spruce aphids. Treat if present in large numbers. Read and follow pesticide label directions.

  • Yard sanitation: rake leaves, cut and remove withered stalks of perennial flowers, mulch flowerbeds, and hoe or pull winter weeds.

Gardening Tips

Tulips at Wooden Shoe Tulip Farm. (Photo by Betsy Hartley)
Now's the time to plant these six spring-flowering bulbs
It's not too late in western Oregon to plant spring-flowering bulbs that will infuse color once the gray days of winter retreat.
Gingko trees display fall colors on the OSU campus. (Photo by Paul Ries)
11 trees to plant to paint the shades of autumn
Don't let this fall's vivid colors remain a memory. Bring home your own spectacular display by planting a tree this winter.
Lime covers a farmer's field. (Photo by Lynn Ketchum)
Checklist for putting your garden to bed for winter
The glistening cold of the Willamette Valley's first frost has ushered in the right time to clean up the garden.
Tomatillos. (Photo by Lynn Ketchum)
Start planning next summer's salsa garden now
If the thought of green chile salsa makes your mouth water, consider designing a salsa garden for next summer.
Using a magnifying glass. (Photo by Lynn Ketchum)
Ten questions to ask to diagnose a plant problem
You may immediately want to know "What's wrong with my plant?" when your tomatoes or azaleas appear wan. But don't stop there.

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'd like to mix more sand into my soil to help break up the clay. If I collect sand from an ocean beach, should I be worried about too much salt in the sand and it impacting my soil? If I were to use the beach sand for another project like a base for setting paving stones, would I be introducing a large amount of sodium?
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