Blanketflowers (Gaillardia aristata) are hardy perennials thriving in USDA plant hardiness zones 5 to 10. They grow 18 to 24 inches tall and spread 12 inches across. In spring and early summer, blanketflowers cover their growing space with red flowers edged with yellow. Their daisy-like blossoms reach 2 to 3 inches across. Blanketflowers grow native in North American prairie areas as a drought-tolerant wildflower. They form dense colonies along roadsides, drainage ditches and open fields. Blanketflowers are used in flower borders, flowerbeds, groundcovers, containers and cut-flower gardens.
Remove the weeds and grass from your planting area located in full sun. Blanketflowers like hot sites. Also remove large rocks and sticks.
Loosen the soil with a shovel to a depth of 12 inches. Turn the soil over and remove buried objects. Break up the soil clumps with the edge of a garden hoe until they are pebble size.
Spread a 3-inch layer of sand and peat moss over the soil. This improves the drainage of the planting site. Work the amendments into the loose soil. Rake the soil smooth and level.
Dig a hole with a hand trowel the same depth as the blanketflower root ball. Remove the seedling from its container and place it in the hole. Fill the hole with soil and firm it around the plant.
Plant the rest of the blanketflowers 6 to 12 inches apart. Sprinkle the area with water until the soil is wet to a depth of 4 inches. Keep the newly planted flowers watered until new growth begins.