Article

Rhubarb

Fertilizers, Hothouse Forcing, Harvesting, Handling, Storage, Pest Control

Presentation

Pruning and Caring for Apple Trees

How to prune and care for apple trees.

Fact Sheet

Fall Garden Maintenance

Fall is a good time to add new plantings, move or transplant shrubs and perennials, and mulch your garden beds. Diseases such as root rot, leaf spot, and stem cankers thrive in fall rain. Proper cleanup can prevent diseases from developing and is more effective than treating an infected plant.

Article

Stressed trees show dieback

Browning or dieback is usually caused by weather-related stress, sometimes in combination with pests and diseases.

Article

Blackberry Rust Fungus: Possible New Biological Control

Blackberry is one of the most widespread and devastating invasive weeds on the west coast. Available cultural, chemical, and mechanical control treatments are effective on a small scale and will continue to be part of an integrated pest management program for blackberry. Biological control is an important addition to currently available control methods to significantly reduce landscape-level impacts by this aggressive weed.

Article

Poison Hemlock (Conium maculatum) – Silage Will Not Reduce the Toxin

Poison hemlock is one of the most poisonous of plants. Silage making has been used to reduce the concentrations of toxins in a variety of crops. Poison hemlock alkaloids are found in different concentrations depending on several factors that make it virtually impossible to predict how dangerous the plant is at any given time.

By Cassie Bouska

Article

Native Plants for the Streamside Garden

Native plants that grow naturally in or very near water (“at the water’s edge”) are adapted to conditions very close to or actually in the stream. Other plants are suitable for drier areas above the actual water table.

By Linda McMahan

Article

Incorporating Pacific Northwest Native Plants into Your Water-Wise Landscapes

Many Pacific Northwest (PNW) native plants have a natural tolerance for summer dry periods common in the near-Mediterranean climate found west of the Cascade Mountains in Oregon and Washington. These plants include species growing in woodlands, savannahs, meadows and vernal pools (seasonally wet meadows that dry out in the summer months).

By Linda McMahan

Article

PNW Native Plants for the Woodland Garden

Many people think of shade or woodland gardens when they think of growing native plants. In fact, many woodland plants do very well in garden settings, but careful selection and care is essential to making your woodland garden flourish.

By Linda McMahan

Article

PNW Native Plants for the Sunny Border

Native prairies, marshes and mountain hillsides provide the source of inspiration for your native plant sunny border. Sunny borders are particularly attractive to butterflies and other sun-loving beneficial insects.

By Linda McMahan

Article

Native Plants for Yamhill County

For thousands of years, our native flora has adapted to our unique local climate and soil conditions. Our soil Ph is slightly acidic overall, and although soils can change from area to area, clay soils seem to predominate. Our patterns of summer dry and winter wet mean that native plants must survive the summer dry months and are adapted to do just that.

By Linda McMahan

Educational Document

Native Plant Profiles: Herbaceous Plants

Fact sheets for several PNW native herbaceous plants.

By Linda McMahan