shrub RHS Award

Korbin Iceberg Rose

Rosa 'Korbin'

The Story

Plant Bio

Floribunda roses are a group of garden roses that were developed by crossing hybrid teas with polyantha roses, resulting in plants that produce flowers in large clusters or sprays.

'Korbin', known worldwide as Iceberg, is arguably the most famous floribunda rose. It is prized for its incredible flower production, bearing huge clusters of pure white, medium-sized, lightly fragrant blooms continuously all season on a vigorous, disease-resistant plant.

Uses & Benefits:

Iceberg provides a nearly nonstop display of pure white flower clusters from spring to frost, brightening any garden. Its graceful, bushy habit makes it an elegant choice for formal beds, cottage gardens, or as a standalone specimen.

It is an excellent choice for creating a low-maintenance, beautiful flowering hedge or screen. The flowers are also suitable for cutting, bringing their classic beauty indoors.

The simple, open flowers are accessible to bees and other pollinators, providing a reliable source of pollen throughout the growing season.

Essentials

At a Glance

Plant Type

Shrub

Height

60 inches

Width

48 inches

Light

Full Sun

Zones

5, 6, 7, 8, 9

Water

Medium

Humidity

Moderate

Lifespan

10-50 years

Native To

Germany (Hybrid)

Toxicity

Non-toxic, but thorns can injure

Bloom period

Late spring – Mid-fall

In flower about 6 months of the year

Planting

How to Grow

Select a site with at least 6 hours of direct sunlight
Prepare rich, well-draining soil amended with compost
Dig a hole large enough to accommodate the roots easily
Set the plant with the bud union at or just below soil level
Backfill the hole, water thoroughly, and build a soil mound around canes
Mulch after new growth appears to conserve moisture

Pro Tip

For best performance, ensure excellent air circulation by giving it plenty of space and pruning the center of the shrub to be more open.

Keep It Thriving

Care Guide

Do

Provide consistent water, aiming for 1 inch per week
Water at the base of the plant to keep foliage dry
Feed regularly throughout the growing season
Remove spent blooms to encourage reblooming
Prune annually to maintain health and vigor

Don't

Don't plant in a shady or crowded location
Avoid overhead watering, which encourages fungal diseases
Don't allow fallen leaves to accumulate around the base
Avoid using broad-spectrum insecticides that harm beneficial insects

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pest Check
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Classic choice for a flowering hedgeProfuse bloomer for mass plantingsElegant specimen in mixed borders

Companion Plants

Lavandula angustifolia Nepeta faassenii Salvia nemorosa Clematis 'Jackmanii'Artemisia 'Powis Castle'

Multiply

Propagation Methods

Good to Know

Common Questions

Korbin Iceberg Rose questions

What zones can Korbin Iceberg Rose grow in?

Korbin Iceberg Rose is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Korbin Iceberg Rose deer resistant?

Not reliably. Deer may browse Korbin Iceberg Rose, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Korbin Iceberg Rose bloom?

Korbin Iceberg Rose typically blooms in late spring through mid-fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Korbin Iceberg Rose need full sun?

Korbin Iceberg Rose does best in full sun (6+ hours).