Be on the lookout for prickly Paterson's Curse in wildflower seed mixes.
Gorgeous yellow iris Is ecological threat to PNW wetlands
As summer approaches and the soil dries, forage plants become dormant. Some years in drier areas of Oregon dormancy may begin in the late spring. If you have irrigation rights, your pastures can provide supplemental nutrition ...
Oregon is the first state to list invasive non-native grass called false brome as a noxious weed.
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.
Butterfly bush, or Buddleia, can be a very aggressive non-native plant that, in certain situations, can overtake native vegetation. Take care to cut blossoms off in the fall.