Solidago Species, Canada Goldenrod, Giant Goldenrod, Tall Goldenrod

Solidago canadensis

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Solidago (so-li-DAY-go)
Species
canadensis (ka-na-DEN-sis)
Synonym
Aster canadensis
Doria canadensis
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
N/A
Bloom Color
Bright Yellow
Bloom Time
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
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
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Midland City, Alabama

Brandon, Florida

Mount Prospect, Illinois

Yale, Iowa

Benton, Kentucky

Brunswick, Maine

Constantine, Michigan

Mount Morris, Michigan

Saint Paul, Minnesota

Young America, Minnesota

Saint Louis, Missouri

Neshanic Station, New Jersey

Ithaca, New York

Asheville, North Carolina

Dayton, Ohio

Glouster, Ohio

Hilliard, Ohio

Vinton, Ohio

Downingtown, Pennsylvania

Gibsonia, Pennsylvania

Millersburg, Pennsylvania

Conway, South Carolina

Florence, South Carolina

Arlington, Texas

Baytown, Texas

Houston, Texas

Lufkin, Texas

Salt Lake City, Utah

Hot Springs, Virginia

Natural Bridge, Virginia

Kalama, Washington

Seattle, Washington

Spokane, Washington

Peterstown, West Virginia

Altoona, Wisconsin

Kinnear, Wyoming

Riverton, Wyoming

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Gardener's Notes:

9
positives
1
neutral
0
negative
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J
Brunswick, ME (Zone 5b) | August 2021 | positive

Several persons have mentioned that this plant has an undeserved reputation for causing hayfever, but not explained why. Let me do that n...Read More

R
Downingtown, PA | September 2015 | positive

This is one of the more typical goldenrods with plume-like flower inflorescences and long, narrow leaves with parallel veins. Extremely s...Read More

M
Neshanic Station, NJ | April 2006 | positive

Our native Goldenrods (about 100 species) are THE primary nectar source used by eastern Monarch butterflies on their southbound migration...Read More

M
M
Benton, KY (Zone 7a) | November 2004 | positive

Unfairly accused of tormenting hayfever sufferers, Goldenrod isn't given the credit it deserves. It's a wonderful native plant that has f...Read More

L
Ithaca, NY (Zone 5b) | November 2004 | positive

Goldenrod makes a great "filler" for dried flower arrangements. Flowers must be cut when about 3/4 of the florets are opened and the flo...Read More

H
H
San Antonio, TX (Zone 8b) | October 2004 | positive

This plant grows much taller than stated above. I just took a photo of one that is 5 feet tall and 3 feet (or more) wide. It is a wonderf...Read More

P
(Zone 8b) | August 2004 | positive

I like Canadian Goldenrod's bright yellow flowers in autumn. It's also a quick spreader allowing you to have more plants in a short perio...Read More

F
Josephine, Arlington, TX (Zone 8a) | March 2004 | positive

I love the look of Goldenrod. In the Fall together with purple Aster and the white Heath Aster it presents a beautiful sight. Mine just a...Read More

M
(Zone 11) | November 2003 | positive

Goldenrod is cultivated in cooler regions, and used in floral arrangements. I love the visual effect of those tiny golden flowers, but it...Read More

L
Grove City, OH (Zone 6a) | January 2003 | neutral

Goldenrod does NOT cause hay fever. Some species are highly ornamental, including this one.

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