Oregon Manroot, Coastal Manroot, Wild Cucumber

Marahoreganus

Family
Cucurbitaceae (koo-ker-bih-TAY-see-ee)
Genus
Marah (MAIR-uh)
Species
oreganus ( or-reh-GAH-nus)
Synonym
Echinocystis oregana
Sun Exposure
Sun to Partial Shade
Partial to Full Shade
Foliage
Deciduous
Height
over 40 ft. (12 m)
Hardiness
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Seed is poisonous if ingested
Bloom Color
White/Near White
Inconspicuous/none
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Vines and Climbers
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Bag seedheads to capture ripening seed
Regional

This plant is said to grow outdoors in the following regions:

Crescent City, California

Ramona, California

Amity, Oregon

Blodgett, Oregon

Friday Harbor, Washington

Mountlake Terrace, Washington

Tenino, Washington

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Featured Videos

Gardener's Notes:

0
positive
3
neutrals
0
negative
Sort By:
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K
Saint Helens, OR | July 2016 | neutral

I recently was visiting some friends in Tenino, WA near the Skookumchuck River, and saw this stuff was growing everywhere! Easily obtai...Read More

G
G
Beautiful, BC (Zone 8b) | July 2013 | neutral

I just ripped out a huge amount of foliage that was covering everything in my small yard. I need to find the tuber and treat it like caud...Read More

A
Mountlake Terrace, WA (Zone 8a) | September 2010 | neutral

This plant is native to the west coast of the North America into BC. It is prized for its caudex which can be in excess of 100 pounds. It...Read More

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