Purple Pillar Rose of Sharon
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A striking deciduous flowering shrub known for its tall, narrow columnar form and abundant deep purple hibiscus-like blooms that appear from mid- to late summer. The rich, vibrant flowers create a bold vertical accent in gardens, hedges, or narrow spaces, while the glossy green foliage provides a lush backdrop and ornamental interest even when not in bloom. Its upright, columnar habit makes it ideal for formal gardens, walkways, or as a pollinator-friendly specimen.
This hibiscus is valued for its strong architectural form, reliable summer flowering, and adaptability to a variety of garden conditions. It grows best in full sun and prefers well-drained soil. Once established, Purple Pillar Hibiscus is moderately tolerant of wind, urban conditions, and heat. Minimal maintenance is required, with light pruning in early spring to maintain its columnar shape and encourage vigorous blooms.
| Fall Colour | Yellow |
|---|---|
| Shape | Upright |
| Sun Exposure | Partial Sun |
| Latin Name | Hibiscus syriacus 'Purple Pillar' |
| Soil Conditions | Moist / Well Drained |
| Flower Colour | Purple |
| Mature Height ** | 3 Meters - 10 Feet |
| Mature Width ** | 1 Meter - 3 Feet 3 Inches |
| Growth Rate | Average |
| Zone | 5 |
| Native | No |
** Maturity Heights and Widths are listed to show what this plant can grow to in warmer climates and over the course of centuries. For landscape purposes in Ontario, take this value at 50% for appropriate spacing in your garden for immediate install purposes / for the next 10-20 years.