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What’s That Weed?

Invasive: Giant hogweed (Heracleum mantegazzianum) Characteristics: Giant hogweed is a very large member of the carrot family, reaching as much as 4.5 m (15 ft) in height.  First-year growth is a bushy rosette of deeply-incised, compound leaves, 30 cm to 1.5 m (1 to 5 ft) wide (yes, you read that right!), with coarse, dense […]

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Leach Botanical Garden’s “Back 5;” a Hidden Gem’s Hidden Gem

Tucked back off SE Foster Road, where 122nd Avenue crosses Johnson Creek, is one of Portland’s lesser-known treasures: Leach Botanical Garden, named for John and Lilla Leach, who lived on the property beginning in the 1930s. They transformed “Sleepy Hollow,” as they called it then, from a pig farm to a showcase for plants, with […]

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What’s That Weed?

Invasive:  Tree of Heaven (Ailanthus altissima) Characteristics:  Tree of Heaven—also called Chinese sumac or stinking sumac—is one of the great misnomers in the plant world.  It is a weedy, fast-growing deciduous tree that can reach 25-45 meters (80-150 feet) in height. Its bark is smooth and pale grey, with light-brown twigs.  The alternating leaves are […]

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Art Contest for Clean-Up T-Shirts!

WHAT: Each year, the Johnson Creek  Watershed Council organizes a Creek Clean-Up in August, removing about 5 tons of garbage! We make t-shirts for our volunteers to keep and wear during the event. We want YOUR art displayed across our volunteers t-shirts! The winning art piece will be worn by hundreds of our volunteers and it […]

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