Solidago canadensis

Canada goldenrod - Solidago canadensis 06SE02
Canada goldenrod - Solidago canadensis 06AU14-02
Canada goldenrod - Solidago canadensis 07AU03-01

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characteristics

Erect perennial, with several flowering stems above the foliage. Masses of tiny, yellow flowers emerge on panicles in a distinctive "pagoda" shape. Exudes an allelopathic substance that inhibits growth of neighbouring plants, especially seedlings. As a result individual plants tend to from ever increasing colonies. In time these can become circles which allow other plants to germinate in the centre. Self seeds readily; can be invasive.

Contrary to popular belief goldenrod does not cause hay-fever. The pollen is both too sticky and too heavy to be blown far from the flowers.

4,600,000 seeds/pound; starts from seed, bare root, cuttings.

T SSN H W sun soil H2O fire N2 pH summer fall flower (seed)
P WY 1.0 0.3 S/PS F-M-C DM-M ••• - 4.8-7.5 green grey yellow

habitat

Abandoned farmlands, infrequently grazed pastures, waste areas, fields, and roadsides.

uses

Caterpillars of a variety of moths eat the foliage.

An important source of nectar for honeybees and butterflies.

Seed source for birds including eastern goldfinch, swamp sparrow, and prairie chicken.

Several shades of yellow dye can be produced from the flowers.

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common > name = have on site
T = type: A = annual | B = biennial | P = perennial | SS = subshrub | D = deciduous | C = coniferous
██ = cold stratify | ██ = cold stratify & scarify | ██ = plant directly | ██ = scarify | ██ = not from seed
SSN = season: C = cool | W = warm | Y = late
H = height (in metres) | W = width (in metres) | B = bunch | S = sod | SB = sod/bunch
sun: S = full sun | S/PS = sun or partial shade | PS = partial shade | SH = full shade
soil: F = fine | M = medium | C = coarse
H2O = moisture requirement: D = dry | M = moist | W = wet | Z = aquatic
fire = fire tolerance: - = unknown | X = none | = some | •• = moderate | ••• = high tolerance
N2 = nitrogen fixing: = yes
summer = foliage colour | fall = foliage (stem) colour | flower (seed) = flower (seed / fruit) colour, if conspicuous
pH = acidity - alkalinity