PURPLE PILLAR® Rose of Sharon

Zone: 5, 6, 7, 8, 9 Exposure: Full Sun Height: 10-16' Width/Spread: 4-5'

A very fastigiate selection, Purple Pillar hibiscus brings the durable, easy growth of rose of Sharon to narrow spaces. Use this columnar plant for hedges or screens; it provides showy summer color for tight sites. The flowers are large and semi-doubled. Like other H. syriacus, this adaptable plant will tolerate black walnut and clay soils.

Why grow Purple pillar rose of Sharon?
– Useful durable performance.
– Interesting upright habit.
– Large, ruffled flowers for summer interest.


Light: Thrives in full sun. When planted in an area that gets less than six hours of direct sun each day, it will not flower as prolifically and long stems may bend more.

Soil: Enjoys any type of well-draining soil. Will underperform if it’s overwatered or in a soggy spot.

Water: Average water needs while establishing. Demonstrates good drought tolerance after its first year in the ground.

Fertilizing: Has a pretty high nutrient need. After its first year in the ground, apply a fertilizer each spring after the soil has thawed. Use a formula with a nutrient ratio that is highest in the middle number (# – # – #), this is Phosphorous and it will help the plant develop flowers.

Pruning: Regular pruning is not necessary. It maintains a naturally graceful upright habit on its own. If any shaping is desired, do so in the early spring.

Botanical Name

Hibiscus syriacus 'Gandini Santiago' PP#25,568, CBR#6178


5, 6, 7, 8, 9

Flower Color


Foliage Color







Full Sun


Average, Dry, Well-draining

Season of Interest



Borders, Cottage gardens, Foundations, Hedges, Mass Planting, Specimen


Alkaline soil, Attracts pollinators, Award winner, Clay soil, Deer resistant, Drought tolerant, Heat tolerant, Salt tolerant

Blooms On

New wood


Mario van Aart


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Gardening Simplified magazine
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