Rumex Species, Curly Dock, Narrow Dock, Sour Dock, Yellow Dock

Rumexcrispus

Genus
Rumex (ROO-meks)
Species
crispus (KRISP-us)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
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)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Pale Green
Inconspicuous/none
Bloom Time
Mid Summer
Other Details
Category
Herbs
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
Direct sow as soon as the ground can be worked
From seed; direct sow after last frost
Seed Collecting
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
Regional

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

Seward, Alaska

Prescott Valley, Arizona

Aurora, Colorado

Lamar, Colorado

Springfield, Colorado

Cross Plains, Indiana

Leavenworth, Kansas

Benton, Kentucky

Falmouth, Maine

Billerica, Massachusetts

Bridgewater, Massachusetts

Cole Camp, Missouri

Glouster, Ohio

Lehigh Valley, Pennsylvania

Millersburg, Pennsylvania

Dallas, Texas

De Leon, Texas

Lake Dallas, Texas

Salt Lake City, Utah

Trenton, Utah

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Gardener's Notes:

4
positives
0
neutral
1
negative
Sort By:
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T
West Valley City, UT (Zone 7a) | May 2014 | positive

I have a couple of these that I started from seed a few years ago. One is about 8' tall (see picture) and the other is only about 3' tall...Read More

H
H
Corpus Christi, TX (Zone 9a) | February 2011 | negative

The PA Germans/"PA Dutch" taught me to call this plant "Indian Tobacco," although I know that common name is _also_ used locally to refer...Read More

R
Billerica, MA (Zone 6a) | January 2010 | positive

I know it's considered a weed to most people but I kind of like it. It's certainly not been a problem on my property, and the rusty color...Read More

O
Dallas, TX (Zone 8a) | July 2008 | positive

A common "weed" to many, Curly Dock has been used for quite a long time, for both it's leaves, and it's seeds. Early settlers would use t...Read More

M
M
Benton, KY (Zone 7a) | July 2006 | positive

An annoying weed with a gazillion seeds. Common in vegetable gardens, commercial crops, abandoned lots and barnyards.

The ...Read More

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