Wild Four O'Clock

About Wild Four O'Clock

Wild Four O'Clock, also known as Heartleaf Four O'Clock, is a hardy and adaptable native perennial that offers a unique temporal display. Standing two to four feet tall, it features smooth, heart-shaped leaves and a robust, multi-branched form. Its most intriguing characteristic is its blooming schedule; the clusters of small, trumpet-shaped purple flowers typically open in the late afternoon or evening and remain open through the night, closing by the following morning. This nocturnal habit makes it a primary destination for evening-flying pollinators like sphinx moths, though bees may visit during the early morning hours. Native to prairies and open fields across the central and western United States, it is incredibly tough, thriving in full sun and dry, gravelly, or sandy soils where other plants might falter. Its deep taproot provides excellent drought resistance, though it can also lead to the plant becoming quite permanent once established. While it can be a vigorous self-seeder and is considered weedy in some areas, its ability to thrive in tough spots and support nocturnal wildlife makes it a valuable addition to a diverse native planting.