White Iceberg Shrub Rose

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5 gallon

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SEE HOW YOUR TREE ARRIVES

White Iceberg Shrub Rose produces generous clusters of bright white, lightly fragrant flowers against glossy green foliage. This repeat-blooming floribunda rose flowers from late spring into early fall and forms an attractive spreading shrub suitable for hedges, borders, and mass plantings. Its nearly thornless stems, vigorous performance, and strong disease resistance have helped make the White Iceberg Rose one of the most recognized white landscape roses.

Botanical name: Rosa spp. ‘Iceberg’
Bloom time: Late spring through early fall
Deciduous shrub
Grown in the USA

SUNLIGHT
Prefers full sunlight. Provide at least 6 hours of direct sunlight daily for plentiful flowers and healthy, vigorous growth.

WATER
Water thoroughly when the top 3 inches of soil feel dry. Established plants generally benefit from approximately 1 inch of water per week when rainfall is insufficient, but frequency varies with climate, weather, soil drainage, and container conditions.

IDEAL CLIMATE
Hardy in USDA Grow Zones 5–9. White Iceberg Shrub Rose performs well in climates with cool winters and warm growing seasons. It prefers full sun, consistent moisture, good air circulation, and fertile soil that drains freely.

PLANT DESCRIPTION & MATURE SIZE

White Iceberg Shrub Rose, scientifically known as Rosa spp. ‘Iceberg’, is a beloved floribunda rose celebrated for its abundant clusters of bright white, lightly fragrant flowers. Blooming repeatedly from late spring into early fall, this vigorous deciduous shrub creates a stunning display against glossy green foliage. Its nearly thornless stems, compact spreading habit, and strong disease resistance make the White Iceberg Rose an outstanding choice for flowering hedges, mass plantings, borders, and specimen gardens.

GROWTH RATE & MATURE SIZE:

Moderate growth rate. Reaches approximately 3 feet tall and 4 feet wide at maturity.

WATERING & SUNLIGHT

Water the White Iceberg Shrub Rose deeply when the top 3 inches of soil feel dry. Newly planted roses may require watering once or twice per week during their first growing season, while established plants generally benefit from approximately 1 inch of water per week when rainfall is insufficient. Water at the base of the shrub and avoid frequently wetting the foliage, which can encourage fungal disease. Watering frequency varies according to USDA Grow Zone, local climate, weather, rainfall, temperature, soil type, drainage, and whether the rose is grown in the ground or a container.

Plant the White Iceberg Shrub Rose where it will receive at least 6 hours of direct sunlight daily. Full sun supports abundant white flowers, sturdy growth, and healthier foliage, although light afternoon shade can be helpful in climates with intense summer heat.

PLANT CARE & PLANTING INSTRUCTIONS

PRUNING
Prune the White Iceberg Shrub Rose in late winter or early spring before vigorous new growth begins. Remove dead, damaged, diseased, crossing, or weak canes, then shorten the remaining growth by approximately one-third as needed to maintain an open, balanced shape. Remove faded flower clusters during the growing season to encourage repeat blooming, unless rose hips are desired.

FERTILIZING
After the establishment period, apply a balanced rose fertilizer in early spring as new growth begins and again after the first major flush of flowers. Follow the product label carefully and avoid overfertilizing, which may produce excessive leafy growth or damage the roots. Avoid fertilizing for the first 2–3 months after delivery to allow the plant to adjust and establish.

WINTER PROTECTION
In colder parts of USDA Zone 5, apply a 3–4-inch layer of mulch around the root zone after the ground begins to freeze. Container-grown White Iceberg Roses require additional insulation or a protected winter location.

PLANTING INSTRUCTIONS:

Choose a location with full sun, good air circulation, and fertile, well-drained soil. Dig a hole approximately twice as wide as the root ball and about as deep as the container. Carefully remove the White Iceberg Shrub Rose, loosen tightly circling roots, and position the top of the root ball level with the surrounding soil. Backfill with the original soil, firm gently, and water thoroughly to eliminate air pockets. Space shrubs approximately 4 feet apart to accommodate their mature width; slightly closer spacing may be used when creating a dense flowering hedge. Apply a 2–3-inch layer of mulch over the root zone while keeping it several inches away from the stems.

USDA GROW ZONE:

Zones 5-9

White Iceberg Shrub Rose grows as a deciduous flowering shrub in USDA Zones 5 through 9. It tolerates cold winters and warm summers but produces its best display where it receives abundant sunlight and good air circulation. In warmer zones, light afternoon shade may protect the flowers from intense heat while allowing the plant to receive sufficient sunlight. Consistent moisture and well-drained soil are important throughout its growing range.

Important: USDA Hardiness Zones only measure a plant's cold tolerance. They do not account for heat tolerance, humidity, rainfall, or other climate factors. Always consider your local growing conditions in addition to your USDA Zone when selecting plants.

Frequently Asked Questions

How big does the White Iceberg Shrub Rose get?

The White Iceberg Shrub Rose reaches approximately 3 feet tall and 4 feet wide at maturity. Its low, spreading habit makes it an excellent choice for flowering hedges, borders, foundation plantings, and mass displays.

How fast does the White Iceberg Shrub Rose grow?

The White Iceberg Shrub Rose has a moderate growth rate. Under favorable conditions, it may develop a substantial flowering shrub within two to three growing seasons, although climate, sunlight, soil, pruning, and planting time influence its growth.

Where is the best place to plant the White Iceberg Shrub Rose?

Plant the White Iceberg Shrub Rose in a sunny border, rose garden, foundation bed, or flowering hedge where it has room to spread. Select a location with good air circulation and well-drained soil, avoiding areas beneath dense tree canopies or where water collects after rainfall.

How far apart should I plant White Iceberg Shrub Roses?

Space White Iceberg Shrub Roses approximately 4 feet apart, measuring from the center of each plant. For a denser flowering hedge, they may be planted about 3 feet apart, although closer spacing can reduce air circulation.

When does the White Iceberg Shrub Rose bloom?

The White Iceberg Shrub Rose begins blooming in late spring and produces repeat flushes of flowers through summer and into early fall. Its bloom season may continue until the first hard frost in mild climates.

Is the White Iceberg Shrub Rose a climbing rose?

No. This White Iceberg Rose has a compact shrub or floribunda growth habit and reaches approximately 3 feet tall by 4 feet wide. Climbing Iceberg is a separate form that develops much longer canes and requires structural support.

Does the White Iceberg Shrub Rose have thorns?

The White Iceberg Shrub Rose is considered nearly thornless, making it easier to maintain than heavily armed rose varieties. A few prickles may still develop, so wearing gloves when pruning or handling the stems is recommended.

Is the White Iceberg Shrub Rose fragrant?

White Iceberg flowers have a light, subtle fragrance rather than a powerful rose scent. This variety is primarily valued for its profuse clusters of luminous white flowers and long repeat-blooming season.

Can White Iceberg Shrub Roses be used as a hedge?

Yes. Their spreading growth habit and abundant white flowers make White Iceberg Shrub Roses an attractive choice for low flowering hedges. Plant them approximately 3–4 feet apart, depending on how quickly and densely you want the hedge to fill in.

Is the White Iceberg Shrub Rose disease resistant?

White Iceberg is widely valued for strong disease resistance compared with many traditional roses, but it is not immune to rose diseases. Provide full sun, good air circulation, and ground-level watering, and monitor the foliage for black spot, powdery mildew, and rust—especially during humid or rainy weather.

More Details

*SHIPPING DETAILS

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At Simply Trees, we're committed to your satisfaction. If your plants arrive considerably damaged or sustained damage beyond the point of recovery, please contact us within five days at sales@simplytrees.com with clear photos of the entire plant in question for assistance. Our 1 year guarantee covers issues after planting, subject to our terms. We can't cover plants in the wrong climate or with inadequate care, but we're here to help in other situations. For a detailed understanding of our 1 year guarantee and how we ensure a fair process, click here to learn more.

SHIPPING TO CALIFORNIA? HERE'S WHAT TO KNOW

All California orders require a mandatory inspection by the Texas Department of Agriculture (yep, it’s a USDA thing!). These inspections happen about once a week—typically on Tuesdays, though the day can vary. If you place an order just after an inspection, your plant may not ship for several days until the next one. Unfortunately, we’re not able to expedite this part of the process.

Also, due to USDA regulations, we’re unable to ship oak trees, citrus or fruit trees (except olive trees) to California. This rule helps prevent the spread of pests and diseases and applies to nurseries across the country.

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We hand-select our plants for premium-quality from top growers nationwide
Each plant is then cleaned, prepped, and pruned to remove any blemishes and encourage new growth
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