WESTERN or NO LEAF SUNFLOWER. Western Sunflower has yellow star-like flowers held up on leafless red stalks two to three feet tall. The shortest of our perennial native sunflowers. These are also called “No Leaf Sunflower” because most or all the leaves are clumped near the ground. Helianthus occidentalis won’t spread aggressively like some perennial sunflowers. Perfect for small prairie gardens and meadows in dry to medium soils.Blooms for an extended period in late summer through fall. Birds love the seeds!! 50+ Seeds per order. Thanks for looking. Helianthus occidentalis. Perennial. Full sun. Spring, soil temp 65F+. SOW-4 seeds per,1/8"deep, about 12" apart. Keep moist. Germination 10-20 days. Thin to single best seedling. Use scissors to cut out unwanted sprouts. Light to medium water. Height 2'-3' tall x 12"wide.