Oxeye Sunflower (Heliopsis helianthoides) is native to the prairie habitats of central Canada. It is not a true sunflower, but rather the flowers resemble a smaller version of the yellow sunflower. Oxeye sunflower is easy to grow from seeds, maintenance is undemanding and it does well in clay rich soil.
Cold, moist stratification required. Mix seeds with moist substrate (vermiculite, perlite or moss) and place in a plastic bag and refrigerate for 6-8 weeks. Sow seed at 1/8 inch depth. Do not let seedling dry out while it is establishing.
Sow directly outdoors in late fall to overwinter.