Plant types and subtypes: Perennials
Light Requirements: sun, part-sun
Water Use: medium
Soil Moisture: dry, moist, wet
Soil Description: rich, loam, clay, sand, gravel/rock
Bloom Time: July, August, September, October
Bloom Color: yellow
Leaf Color: green
Hardiness Zone: 2, 3, 4, 5, 6, 7, 8
Additional Tags: attracts bees, attracts butterflies, clumping, colonizing, cottage garden plant, naturalizing, rock garden plant, stream margin plant
Pricing & Availability
Euthamia graminifoliaAlso known as:
Euthamia graminifolia is a medium height native wildflower that usually does not grow taller than 4'. The stems are often branched, giving the plant a full appearance. It produces dense terminal, "flat" clusters of small yellow flowers. These open gradually providing a bloom time that can extend for over a month. The green leaves are elongated, grass-like, up to 4" long and usually less than 1/4" wide.
Flat-top goldentop is easy to grow in rich, moist, well-drained soil, preferably in full sun. Under ideal conditions it will spread rapidly by means of rhizomes to form dense colonies. This species is less susceptible to powdery mildew than other goldenrods, however it is best to place it in a location with good air circulation to further minimize the risk. Established plants are tolerant of irregular dry conditions. Can bloom as early as July, and as late as October or first frost. Very hardy: zones 2-8
It is easily propagated by clump or rhizome division, in early spring or when the plant is dormant. Is also easy to propagate from seed without pretreatment, though the viability of stored seeds seems to increase when they are subjected to a period of cold stratification.
Euthamia graminifolia is easy to grow and adaptable. Its form and height are greatly variable and dependent on soil quality and moisture. A good choice for cottage gardens and rock gardens alike.
Native Range & Classification
Recorded County Distribution: USDA data
AL, CO, CT, DC, DE, IA, ID, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, VA, VT, WA, WI, WV, WY
|Species||Euthamia graminifolia||flat-top goldentop|