White Pillar Rose of Sharon (Hibiscus syriacus 'Gandini van Aart' WHITE PILLAR)
hy-BIS-kus seer-ee-AY-kus 'Gandini van Aart' WHITE PILLAR

Deciduous Perennial Shrub in the Malvaceae Family

Hibiscus syriacus 'Gandini van Aart' WHITE PILLAR (US Plant Patent 28,892) is an upright, columnar Rose of Sharon cultivar with single white flowers. It forms a deciduous shrub 10 to 16 feet tall and 4 to 5 feet wide, blooming on new wood from summer into fall.

Easy to grow in average garden soil; prefers full sun. Winter hardy through zone 5a. Though marketed alongside the narrower 'Purple Pillar' (15004) as part of the same Pillar series, this white-flowered selection grows noticeably wider at maturity.

Pros

  • Tall, upright columnar form
  • White blooms from summer into fall
  • Attracts hummingbirds and pollinators

Cons

  • Deciduous -- bare in winter
  • Each flower lasts only a day
  • Blooms only on new wood, so hard pruning timing matters
Highlights A patented, tall columnar Rose of Sharon valued for its white blooms from summer into fall.
 

Plant Data

Mature Size 10 - 16 feet tall. 4 - 5 feet wide.
Growth Rate Medium
Sun Exposure Full Sun - Full Sun
Moisture Tolerance Medium - Wet
Zones 5a - 9b (Usually hardy to -20° F)
Tags Adaptable, Attracts Butterflies, Attracts Hummingbirds, Container, Deciduous, Deer Resistant, Drought Tolerant, Extended Bloom Time, Flowering Tree, Formal Garden, Foundation, Full Sun, Full Sun, Good for Accents, Good for Borders, Good for Butterfly Garden, Good for Cottage Garden, Good for Mass Planting, Good for Rain Garden, Low Maintenance, Medium, Normal Soil, Perennial, Reblooms, Showy Flowers, Shrub, Thrillers, Tolerant of Moist Soil, Tree, Well-Drained Soil, Wet, Wet Site Tolerant
Bloom Period July-September
Flower Color White
 

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Pricing and Availability History

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Past Availability
2025 : 02/05 - 05/17
2024 : 02/08 - 05/18
2023 : 03/02 - 05/21

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Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.


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To secure the best prices for club members and make sure we know the current plants available from each nursery, we take orders only a couple of times a month.

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No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!