Prickly Sowthistle Weed Killer

Sonchus asper Herbicide

Common Name for: Spiny Sowthistle
Description of Sowthistle, Prickly (sonchus asper):
Spiny sowthistle an an annual weed that may grow up to 6 feet in height. The leaves are greenish-blue and, when cut, the stems release a milky white sap. The flowers are about 1/2 to 1 inch across and are yellow. It's easy to remove this particular weed due to the fact that it is just a large taproot with a plant on top.

Control Options for Sowthistle, Prickly

No Control
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Spot Treatment
Label Rate:
0.06 ounces per gallon
Cost Effectiveness:
Makes 177.19 gallons
at a cost of
$0.68 per gallon
Broadcast Treatment
Label Rate:
0.06 ounces per 1,000 sqft
Cost Effectiveness:
Covers 177187 square feet
at a cost of
$0.68 per 1,000 sqft
Safe On
St. Augustinegrass, Bermudagrass, Centipedegrass, Zoysiagrass, Buffalograss Safe Rate:
0.06 - 0.11 ounces per gallon
0.06 - 0.11 ounces per 1,000 sqft
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