"Purple Pillar® is a totally unique rose of Sharon: it naturally grows as a narrow column instead of a wide, spreading plant. It gets to be just 2-3' (.6-.9 m) wide and 10-16' tall! Think of what you could do with that: screens, hedges, patio containers. Anywhere you need a little privacy and/or color in a narrow space, this plant is a great choice. Like most all hibiscus, it will do best in full sun. It is hardy to USDA Zone 5. In summer, each stem is packed along its entire length with purple blooms." Spring Meadow Nursery [Hibiscus]