A variety of mahonia, Oregon grape is the official plant of the US state that bears its name. It produces yellow clusters of flowers in spring and its leaves change colour as summer moves into the ...

as long as care is taken to remove as much of the root mass as possible using a shovel to get under the main stem and leverage the plant out of the ground can help with hand pulling Note: Oregon grape ...

Not as friendly to work with due to their sharp thorns, they are nonetheless beautiful plants. Oregon grape-holly (Mahonia aquifolium) has many varieties that produce both colorful leaves in ...