False Sunflower

False sunflower or oxeye, is a tough, easy-to-grow perennial plant featuring bright yellow, daisy-like flowers.
Quick Facts
Botanical Name: Heliopsis helianthoides
Plant Type: Herbaceous perennial
Hardiness Zones: USDA Zones 3 through 9
Size: 3 to 6 feet tall (dwarf varieties stay shorter) and 1 to 3 feet wide
Bloom Time: Mid-summer to fall
Growing Conditions
Sunlight: Full sun (six or more hours of direct sunlight daily) for the best flowers.
Soil: Adapts well to clay, sand, or rocky soil, but prefers well-draining, average soil.
Water: Moderate water needs; highly drought-tolerant once established. Avoid overwatering.
Care and Maintenance
Pruning: Cut stems back by about a third in late spring to encourage a bushier, sturdier plant. Cut dead growth down to the ground in early spring.
Deadheading: Remove faded flower heads during the season to prolong the blooming period.
Dividing: Divide clumps every 3 to 4 years in spring or fall to keep the plants vigorous