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Iceberg Alley® Sageleaf Willow

Salix candida 'Jefberg'

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Iceberg Alley Sageleaf Willow

Discover More Information On Iceberg Alley® Sageleaf Willow

Iceberg Alley® is a North American native cultivar discovered by the Memorial University of Newfoundland and Labrador Botanical Garden. This small shrub's powdery, silver foliage adds texture and contrast when combined with other plants. It forms a rounded habit and does not overtake the landscape, reaching a height and spread of about 5' (a but shorter in very cold areas and a bit taller in warmer zones). It blooms in spring with silver catkins with red stamens and nectar for pollinators. Iceberg Alley® is tolerant of moist soils and a good choice for rain gardens. It grows best in full sun and tolerates pruning beautifully. Consider cutting the stems in early spring for the decorative catkins.

Plant Attributes

Iceberg Alley® Sageleaf Willow is an intriguing cultivar native to North America and was discovered by the Memorial University of Newfoundland and Labrador Botanical Garden. This compact shrub is admired for its beautiful powdery, silver foliage which adds a distinct texture and contrast when combined with other plants in a garden setting.

Its growth habit is rounded and moderate, not overbearing in the landscape. The shrub generally attains a height and spread of around 5 feet, although it can be somewhat shorter in very cold regions and a bit taller in warmer climates. The Iceberg Alley® is known to bloom in spring, producing attractive silver catkins that are dotted with vibrant red stamens, a feast for pollinators in the garden.

One of the prominent features of this plant is its tolerance for moist soils, making it an excellent choice for rain gardens. Optimal growth conditions for the Iceberg Alley® include full sun exposure, and it also stands up well to pruning, which is beneficial in maintaining its shape and encouraging healthier growth.

Pruning can also be done in early spring if the decorative catkins are desired for their ornamental value. On the scale of hardiness zones, this variety can comfortably grow in zones 2 through 6 and can withstand a heat zone up to 6. The foliage is a striking silver color and the flowers present a delicate pink hue, adding another layer of charm to this versatile shrub. Its upright, rounded habit gives it a neat appearance, making it a beautiful addition to any landscape.

Landscape Use

The Iceberg Alley® Sageleaf Willow, with its distinctive features and adaptability, offers a multitude of uses in landscaping. Here are some potential applications:

  1. Rain Gardens: Given its tolerance for moist soils, it's a great choice for rain gardens. These are gardens designed to take advantage of rainfall and stormwater runoff in its design and plant selection.
  2. Ornamental Shrub: Thanks to its silver foliage and pink flowers, it serves as an attractive ornamental plant. Its round and compact habit makes it a suitable choice for most garden sizes, including smaller urban gardens.
  3. Contrast Planting: The unique silver color of its leaves offers excellent contrast when planted with darker-leaved plants or colorful flowering plants. This can help highlight different areas of your garden or draw attention to specific plantings.
  4. Borders and Hedges: Its moderate growth and response to pruning make it an excellent plant for creating borders or low hedges. The dense foliage provides a good privacy screen when planted in a row.
  5. Pollinator Gardens: The springtime catkins with red stamens attract pollinators, making this a good addition to a pollinator-friendly garden.
  6. Container Planting: Given its moderate size, the Iceberg Alley® Sageleaf Willow can be grown in large containers. This is useful for patios, balconies, or small yards where ground planting may not be feasible.
  7. Winter Interest: The silver foliage and catkins provide some interest in the garden even in winter, especially in areas where winters are milder.
  8. Coastal Landscaping: Willows are generally salt-tolerant, and given its hardiness, this variety might be a good fit for coastal landscapes, although this should be confirmed for this specific variety.

Remember, as with any plant, it's essential to consider the specific requirements and habits of the Iceberg Alley® Sageleaf Willow to ensure it thrives in your garden or landscape.

Planting & Care

Planting and care for the Iceberg Alley® Sageleaf Willow involve several key steps to ensure a healthy, thriving plant:


  1. Location: This plant grows best in full sun, so choose a spot where it will get at least 6 hours of direct sunlight each day.
  2. Soil: While it's tolerant of moist soils, ensure that the site has good drainage to avoid waterlogging the roots. The soil can be rich in organic matter, but the plant generally tolerates a range of soil types.
  3. Spacing: As the plant reaches about 3 to 6 feet in both height and spread, ensure enough space between plants if planting more than one.


  1. Watering: Regular watering is crucial, especially in the first year as the plant establishes. The soil should be kept consistently moist but not waterlogged.
  2. Pruning: The Iceberg Alley® Sageleaf Willow responds well to pruning. Pruning can help maintain its shape, encourage more vigorous growth, and can be performed in early spring if you wish to use the decorative catkins for ornamental purposes.
  3. Fertilizing: While willows aren't heavy feeders, applying a balanced slow-release fertilizer in spring can help promote healthier growth. Always follow package instructions when applying fertilizer.
  4. Pest and Disease Management: Monitor the plant regularly for any signs of pest infestation or disease. Common issues could include willow beetles and fungal diseases such as rust. Contact your local extension service or a horticultural professional for advice if you see any issues.
  5. Mulching: Apply a layer of mulch around the base of the plant to help retain soil moisture and regulate soil temperature.
  6. Winter Care: Depending on your hardiness zone, some winter protection may be necessary. Covering the base of the plant with a thick layer of mulch can help protect the roots in colder climates.

Additional Information

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Iceberg Alley® Sageleaf Willow


Plant Features

  • Height: 3-6'
  • Width: 3-6'
  • Hardiness Zone: 2-6
  • Heat Zone: 6
  • Exposure: Full Sun
  • Habit: Upright, Rounded
  • Flower Color: Pink
  • Foliage: Silver

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