Rosaceae or Rose Family
Growth Habit: Long lived perennial, grows 12 to 18 inches tall.
Leaves: Palmate compound, 7 leaflets, stiff hairs on lower surfaces, yellowish green.
Stems: Covered in hairs that are twice the length of the stem at right angles, many leaves along stem but few at base, branched near the top.
Flowers: Half to one inch in diameter, pale yellow.
Roots: Single taproot, may have several shallow spreading branch roots, no rhizomes.
Seeds: Produces up to 1,650 seeds per plant, viable up to 3 years. Plants can live up to 20-30 years old.
Reproduction: By seed.
Habitat: Found in meadows, roadsides, native grasslands, pastures, and waste places.
Handpulling: Handpulling is not a very effective method of control for this species as above-ground stems tend to break, leaving the root system intact and able to re-grow.
Mowing: Mowing is not an effective method of control as the massive root system acts as a food reserve system; allowing the plants to re-grow immediately after mowing.
Biological Control: N/A
Grazing: Grazing is not a recommended control option for this species. It is not a preferred forage plant for goats or sheep, resulting in selective pressure against desirable vegetation that allows sulfur cinquefoil to outcompete the desired plant community.
Herbicide: Sulfur cinquefoil can be controlled with a number of herbicides applied at 2 to 4 year intervals. Seed that persists in the soil retains a high viability for well over 5 years, allowing it to re-establish on sites that are not managed beyond an initial treatment. The following herbicides have been labelled for the control of sulfur cinquefoil. Always consult product labels and read them carefully to ensure correct species/land management usage and chemical application.
|Trade Name:||Active Ingredient:||Rate:||Efficacy:||Comments:|
|Tordon 22k||picloram||1 pt/acre||most effective in actively growing plants; spring or fall||
Cannot use near surface water, shallow water, landscaped areas
(Restricted Herbicide - need an applicator license to use.)
|Milestone||aminopyralid||4-7 oz/acre||most effective in actively growing plants; spring or fall||Can be applied to waters edge;
cannot be used in landscaped areas and current or future vegetable gardens, mulch or manure
from treated areas should not be applied to
vegetable gardens or composted for vegetable gardens
|Banvel + 2,4-D||dicamba + 2,4-D||
.5 lbs ai/acre dicamba
|most effective when applied to early growth stages|