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How long do weed seeds survive in the soil?

Weed seeds can survive in the soil for years before they germinate and grow.

Feb 19, 2003 | News Story

Let soil temperature guide you when planting vegetables

It's time to plant cool-weather vegetables like greens and peas; wait for the soil to warm before planting tomatoes, squash and peppers.

Kym Pokorny | Apr 12, 2019 | News Story

Coastal Pastures in Oregon and Washington

The coastal regions of Oregon and Washington have different climate and soils than other parts of the states. Rainfall is high, ranging from 70 inches in southern Oregon to more than 100 inches in the coastal mountains. ...

Fred Lundin | Sep 1996 | Article

Turfgrasses and Lawn Care in Eastern Oregon

Today, turfgrass is the single largest irrigated crop in the United States and covers three times the land area of any other cultivated crop. An estimated 40.5 million acres of grasses are planted in residential, commercial and...

Richard Smiley | Jan 2018 | Article

Things to Consider when Starting Your Vegetable Garden

What to grow, space needs, time needs, ideal calendar, soil preparation, planting, fertilizing, and watering.

May 2014 | Article

Can you help with less grass and more veggies?

Q: I live in DT Corvallis. Want to convert about 1,400 SF lawn into garden. Currently digging up soil to get rid of as many weeds and grass roots as feasible. Soils turns rock hard in summer. Should I mix in compost? If...

A: View answer | View all featured questions

What should I be doing now for weed control?

Q: The straw mulch I used at the end of summer to suppress the weeds doesn't seem to be working. Should I till it and cover with plastic? black or clear? Is there something better. Or should I add more straw. I could probably bring some cardboard home from work. Is this a healthy option?

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Scotch Thistle

Scotch thistle was introduced to the United States in the 1800s as an ornamental plant from the Mediterranean region. It is a noxious weed in Idaho, Oregon, and Washington. Scotch thistle can form dense, virtually impenetrable ...

Sep 2003 | OSU Extension Catalog

Integrated Management of Mayweed Chamomile in Wheat and Pulse Crop Production Systems

In small grain and pulse crops throughout the high rainfall zones of the Inland Pacific Northwest, mayweed chamomile is a troublesome weed. Individual plants can produce as many as 17,000 seeds, and seed remain viable in the ...

Andy Hulting | May 2017 | OSU Extension Catalog