- You will get 501+ Seeds of Mexican Hat Flower Seeds. - Seller Notes: “Ratibida columnaris. U.S. Grown Seed. Tested 1/23-Germination 93%. Packed 1/23.”. - Planting Time: Perennial. - Soil Type: Chalk, Clay, Loam, Peat, Sand. - Life Cycle: Perennial. - USDA Hardiness Zone (°F): 6 (-10 to 0 °F). - Soil pH: Neutral. - Watering: Light. - Sunlight: Full Sun, Medium Sun. - Mexican Hat Coneflower. American native wildflower from the southwest. Easy to grow, interesting red on yellow flowers. Pretty much a carefree plant once established. Mexican Hat Flowers will thrive where most other plants can't. There not picky about soil. Drought tolerant when mature. They have a long-life span(7yrs+) You can divide the plants in spring after the 3rd year and beyond. Cut down stems in winter/early spring. They come back every spring, and blooms mid- summer into late fall. Butterflies and bees love this plant. 500+ Quality seeds per order. Thank You! - Some American Native Wildflower seeds need to go through a cold winter to germinate. This plant is one of them. They do this so the seed won’t sprout in fall, only to have the seedling not make it through a cold winter. I have stratified these seeds to simulate a cold winter(stratification) This raises the germination rate considerably. Thanks for looking!!. - Ratibida columnaris. - Perennial. - Full sun. - Spring, soil temp 65F+. - SOW 1/4" deep, 4" apart. Keep moist. - Germ 10-21 days. - Medium water. Light fertilizer. - Flowers are red/yellow. Blooms from mid-summer through late fall.