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Hortsense

Hortsense Home| Hortsense fact sheets | Weeds | Goldenrods

Weeds

Annual bluegrass

Bentgrass, creeping

Bittercress (Shotweed, Hairy bittercress)

Bittersweet nightshade (European bittersweet)

Blackberry (Himalayan, Evergreen, Pacific)

Blue mustard (Purple mustard, Tenella mustard)

Brackenfern, western

Buttercup, creeping

Catchweed bedstraw (Cleavers)

Catsear, common (False dandelion)

Chickweed, common and mouseear

Dock (Curly, Broadleaf)

Downy brome (Cheatgrass, Downy chess)

Dwarf mistletoes

English daisy (Lawn daisy)

Field bindweed (Wild morningglory)

Field pennycress (Fanweed)

Foxtail (Green, Yellow, Bristly)

Garden loosestrife

Groundsel, common

Herb Robert (Robert geranium, stinky Bob)

Horsetails (Scouringrush)

Horseweed (Marestail)

Knotweeds (Bohemian, Giant, Japanese, Himalayan)

Lambsquarters, common

Lesser celandine

Mallow, common (Cheeseweed, Buttonweed)

Oxalis (Creeping woodsorrel)

Parrotfeather and Eurasian watermilfoil

Plantain (Broadleaf, Buckhorn)

Poison ivy and Poison oak

Prickly lettuce (China lettuce)

Prostrate knotweed

Puncturevine (Tackweed, Goathead)

Purple deadnettle (Red deadnettle)

Purple loosestrife (Purple lythrum)

Purslane, common

Red sorrel (Sheep sorrel)

Redroot pigweed (Rough pigweed)

Redstem filaree (Stork's bill, Crane's bill)

Reed canarygrass

Russian thistle (Tumbleweed)

Ryegrass, annual (Italian ryegrass)

Salsify (Goatsbeard)

Shepherd's-purse

Sowthistle, annual and perennial

Spurges (Prostrate spurges)

St. Johnswort, common (Goatweed, Klamathweed)

Stinging nettle

Tumblemustard (Jim Hill mustard)

Velvetgrass (Common velvetgrass)

Waterhemlock, western

Yellow nutsedge

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Caption: Goldenrod with flowers

Photo by: T.W. Miller

Weeds : Goldenrods : Solidago spp.

(revision date: 6/9/2014)

Family: Asteraceae (Compositae)
Cycle: Perennial
Plant Type: Broadleaf

Use Integrated Pest Management (IPM) for successful weed management.

Biology

Most goldenrod species spread by both seeds and by creeping root systems. They are upright plants, growing one to four feet tall or more, depending on species. The leaves are long and narrow, sometimes with toothed margins. Leaves typically have three obvious veins originating at the base of the leaf and are usually hairless or nearly so (sometimes hairy on the underside, especially along the veins). The leaves are alternate on the slender stems. Flower heads are borne at the top of the stems, typically in elongated, very distinctive clusters or "plumes" of golden yellow blossoms (some species have flat-topped clusters of flower heads). Individual flower heads are small and aster-like, with yellow ray and disk flowers. Flowering typically occurs from (approximately) July to October. The aboveground portions of the plant die back each fall, with regrowth in the spring from the perennial roots.

Habitat

Goldenrods are common along stream banks and ditches, in meadows, along roadsides, and in other sites, mostly on moist, rich soils.

Management Options

Non-Chemical Management

None recommended

Select non-chemical management options as your first choice!

Chemical Management

IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides

Apply according to label instructions. Not a problem in established turf areas. Glyphosate products should be applied as spot treatments only! NOTE: Some ingredients listed here are only available in combination. Read the label carefully on combination products to make sure the product is suitable for your specific situation.

Landscape areas

glyphosate

Turf areas

Bare ground areas

glyphosate

Images

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Caption: Goldenrod with flowers Photo by: T.W. Miller