The first Tree School Online session debuted with 300 registered participants. Since then, the live classes have rolled out with anywhere from 50 to 100 participants.
Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.
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.
The category of Old Roses remains one of the most misunderstood and confusing. Nurseries may call a plant an "antique rose" or an "old garden rose," but the rose may not truly be an Old Garden Rose.
The philosophy for this online source is to provide the home gardener with OSU publications, research, and news items that are related to the home orchard and garden.