Red Pillar Hibiscus is a relatively new cultivar of hardy hibiscus, scientifically known as Hibiscus moscheutos. Here's some information about the Red Pillar Hibiscus:

1. Appearance: Red Pillar Hibiscus is a deciduous perennial shrub with an upright, columnar growth habit. It typically reaches a height of 6 to 10 feet and a width of 4 to 5 feet. The plant produces multiple stems with deeply lobed, dark green leaves. In mid to late summer, it bears large, showy flowers that are 7 to 8 inches (about 18 to 20 centimeters) in diameter. The flowers are deep red with a dark red eye, and they have overlapping petals that give them a ruffled appearance.

2. Sunlight: Red Pillar Hibiscus thrives in full sun to partial shade. It prefers at least 6 hours of direct sunlight per day to produce the best flower display. In hotter climates, some afternoon shade can help protect the plant from heat stress.

3. Soil: This hibiscus variety prefers moist, well-draining soil that is rich in organic matter. It can tolerate a wide range of soil types, including loamy, sandy, or clay soils, as long as the drainage is good. Amending the soil with compost or peat moss can help improve soil fertility and moisture retention.

4. Watering: Red Pillar Hibiscus has moderate water needs and prefers consistently moist soil. Water deeply and thoroughly, especially during hot, dry weather, to keep the root zone evenly moist. Mulching around the base of the plant can help retain soil moisture and suppress weeds.

5. Pruning: Pruning requirements for Red Pillar Hibiscus are minimal. You can remove any dead or damaged branches in late winter or early spring before new growth emerges. Light pruning may also be done to shape the plant or remove any unwanted growth.

6. Fertilizing: Red Pillar Hibiscus benefits from regular fertilization to promote healthy growth and abundant flowering. Apply a balanced, slow-release fertilizer in early spring, following the package instructions. Additional fertilizer applications may be needed during the growing season if growth appears slow or leaves show signs of nutrient deficiency.

7. Winter Care: Red Pillar Hibiscus is hardy in USDA zones 5-9. In colder regions, it may die back to the ground in winter and regrow from the base in spring. Mulching around the base of the plant can help protect the roots from freezing temperatures.

Overall, Red Pillar Hibiscus is a stunning and low-maintenance plant that adds height, color, and texture to garden landscapes. With its upright growth habit and striking red flowers, it makes an excellent focal point in flower beds, borders, or large containers.