Iceberg rose
Rosa 'Korbin'
Iceberg rose (Rosa 'Korbin') is a shrub suited to the Colorado Front Range. It matures to about 3–5 ft tall and 3–4 ft wide, needs medium water, and prefers full sun. A workhorse floribunda smothered in pure-white clusters from June to frost, more forgiving than a hybrid tea. A hard, dry Front Range winter can still knock it back, so mulch the base.
Plan your garden
Not sure what to plant? The finder matches Front Range trees, shrubs, perennials, and groundcover to your soil, water, sun, and zone.
Ready to plant this?
At a glance
- Botanical name
- Rosa 'Korbin'
- Variety / cultivar
- Iceberg
- Type
- Shrub
- Mature size
- 3–5 ft tall and 3–4 ft wide
- Planting spacing
- ~4 ft apart (3 ft for a hedge/screen)
- Hedge use
- Informal hedge or screen
- Bloom length
- Reblooms
- Hardiness zones
- USDA 5–9
- Growth rate
- Moderate
- Water needs
- medium water
- Sun
- Best in full sun.
- Colorado native
- No
- Foliage
- Deciduous
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–7.5
- Hail tolerance
- moderate
- Wind tolerance
- moderate
- Salt tolerance
- low
- Bloom color
- white
- Bloom time
- early summer, mid summer, late summer, early fall
- Pollinator value
- moderate
Things to know before you plant
- ThornyIt is thorny, so site it away from paths, seating, and play areas.
Wildlife & ecology
- Pollinator value
- moderate
- Deer
- Not deer-resistant
Common problems on the Front Range
- Aphids
- Blackspot and powdery mildew
- Japanese beetle
These are general tendencies for this group of plants on the Front Range, not a diagnosis. Many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or your local CSU Extension office.
Planting & establishment
Give it deep, regular water the first two seasons and steady moisture after; mulch to keep the roots cool and moist.
- Pruning: moderate.
Frequently asked questions
- Is Iceberg rose good for the Colorado Front Range?
- Yes, Iceberg rose is a well-suited shrub for Colorado's Front Range.
- What should I know before planting Iceberg rose?
- The main things to know: It is thorny, so site it away from paths, seating, and play areas.
- How big does Iceberg rose get?
- It matures to about 3–5 ft tall and 3–4 ft wide.
- How far apart do I plant Iceberg rose?
- Space Iceberg rose about 4 ft apart for a full, natural form, or about 3 ft apart for a faster hedge or screen.
- Is Iceberg rose hardy on the Front Range?
- Iceberg rose is hardy in USDA 5–9. The Colorado Front Range spans roughly USDA 4b–6a, so it is at its cold edge here. Site it in a warm microclimate and protect young plants.
- How much water does Iceberg rose need?
- It needs medium water once established.
- How fast does Iceberg rose grow?
- Iceberg rose is a moderate-growing shrub. Growth rate depends on water and site conditions on the Front Range.
- Is Iceberg rose native to Colorado?
- No. It is not a Colorado native, but it grows well on the Front Range.
- Is Iceberg rose deer-resistant?
- No. Iceberg rose is not considered deer-resistant and may need protection where deer browse.
- Is Iceberg rose prone to pests or disease on the Front Range?
- Iceberg rose can be affected by aphids and other issues common to this group on the Front Range. These are general tendencies, not a diagnosis, many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or CSU Extension.
- Is Iceberg rose a good hedge plant?
- Yes, as an informal hedge. Iceberg rose works best as a relaxed hedge or screen kept to its natural form rather than sheared into a tight box.
- How long does Iceberg rose bloom?
- Iceberg rose reblooms through the season, especially if you deadhead spent flowers on the Front Range. Bloom timing shifts a week or two with elevation and spring weather.
