Common Yarrow (Achillea millefolium)

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  Credit: Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 516. | USDA | License: PD USDA
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  Credit: Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 516. | USDA | License: CC-BY-SA-2.5
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  Credit: Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 515. | USDA | License: PD USDA NRCS
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  Credit: Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 515. | USDA | License: PD USDA NRCS
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Achillea Millefolium, or more commonly know as Common Yarrow, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with green foliage and white flowers of the genus Achillea. It has a moderate growth rate and a height of 3 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring, blooms during early summer and is somewhat tolerant of shade. Achillea Millefolium or Common Yarrow's floral region is North America US Lower 48, Alaska and Hawaii, specifically in the states of Alaska, Alabama, Arkansas, Arizona, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Iowa, Idaho, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin and Wyoming.

• Category: Dicot
• Genus: Achillea
• Family: Asteraceae
• Order: Asterales
• Class: Magnoliopsida
• Division: Magnoliophyta
• Duration: Perennial
• Growth Habit: Forb/herb
• Native Status: L48 (NI) AK (N) HI (I) CAN (NI) GL (N) SPM (NI)
• PLANTS Invasive Status: KY N'EAST NE&GP SWSS
• National Wetland Indicator Status: UPL FACU
• Regional Wetland Indicator Status: 1(FACU) 2(FACU) 3(FACU) 4(FACU) 5(FACU) 6(FACU) 7(FACU) 8(FACU) 9(FACU) 0(FACU) A(FACU) H(UPL)
• Active Growth Period: Spring
• After Harvest Regrowth Rate: Moderate
• Allelopath: No
• Bloat: Low
• C:N Ratio: Medium
• Coppice Potential: No
• Fall Conspicuous: No
• Fire Resistance: No
• Flower Color: White
• Flower Conspicuous: Yes
• Foliage Color: Green
• Foliage Porosity Summer: Porous
• Foliage Porosity Winter: Porous
• Foliage Texture: Fine
• Fruit/Seed Color: Brown
• Fruit/Seed Conspicuous: No
• Growth Form: Rhizomatous
• Growth Rate: Moderate
• Height Mature (feet): 3
• Leaf Retention: No
• Lifespan: Moderate
• Low Growing Grass: No
• Resprout Ability: No
• Shape and Orientation: Erect
• Toxicity: Slight
• Adapted to Coarse Textured Soils: No
• Adapted to Fine Textured Soils: No
• Adapted to Medium Textured Soils: Yes
• Anaerobic Tolerance: None
• CaCO3 Tolerance: Medium
• Cold Stratification Required: No
• Drought Tolerance: Medium
• Fertility Requirement: Medium
• Fire Tolerance: High
• Frost Free Days Minimum: 120
• Hedge Tolerance: None
• Moisture Use: Medium
• pH (Minimum): 6
• pH (Maximum): 8
• Planting Density per Acre Minimum: 4800
• Planting Density per Acre Maximum: 19000
• Precipitation (Minimum): 8
• Precipitation (Maximum): 60
• Root Depth Minimum (inches): 8
• Salinity Tolerance: None
• Shade Tolerance: Intermediate
• Temperature Minimum (°F): -38
• Bloom Period: Early Summer
• Commercial Availability: Routinely Available
• Fruit/Seed Abundance: Medium
• Fruit/Seed Period Begin: Summer
• Fruit/Seed Period End: Summer
• Fruit/Seed Persistence: Yes
• Propagated by Bare Root: No
• Propagated by Bulbs: No
• Propagated by Container: Yes
• Propagated by Corms: No
• Propagated by Cuttings: No
• Propagated by Seed: Yes
• Propagated by Sod: No
• Propagated by Sprigs: Yes
• Propagated by Tubers: No
• Seed per Pound: 2852012
• Seed Spread Rate: Slow
• Seedling Vigor: Low
• Small Grain: No
• Vegetative Spread Rate: Slow

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