- Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight)
- Mature Height 40 - 50 Feet
- Mature Spread 20 - 30 Feet
- Growing Zones 3 - 6
- Use As A Thriller In Containers
Avalanche Birch (Betula x ‘Avalzam’) offers crisp white bark and glossy green leaves, creating an elegant focal point for lawns, borders, or near water features. Its multi-stemmed form features bark that initially shows tan and pink hues but matures to a striking bright white, contrasting with emerald leaves that turn a warm golden in autumn. Reaching a mature height of about 50 feet and a spread of 30 to 40 feet, it stands out for superior pest resistance, including tolerance against the bronze birch borer. Its fast growth and easy adaptability to various light conditions make it an appealing choice for gardens seeking color and strong vertical interest.
Avalanche Birch demonstrates moderate drought tolerance once established, though it prefers evenly moist, slightly acidic soil. It is resilient in windy or challenging environments and is hardy in zones 4 through 7. This birch benefits birdlife by offering both shelter and nesting spots, but it is resistant to deer browsing. Its smooth trunk and upright habit lend themselves to a refined look as a single lawn specimen or grouped for a nature-inspired grove effect. Use it in cottage gardens, along driveways, or for framing architectural elements.
Avalanche Birch Care
Position Avalanche Birch in full sun or partial sun, providing about six hours of daily light. Plant in well-drained, moderately acidic soil, and water consistently during the first couple of growing seasons, especially in periods of high heat. A general-purpose, slow-release fertilizer in early spring can enhance leaf color and trunk vigor. Mulch around the base for root protection, soil moisture retention, and weed control. While it handles occasional dryness, consistent moisture helps uphold its signature bark color and keeps foliage in prime condition.
Pruning typically entails removing damaged or crossing limbs to maintain an appealing silhouette. Tackle any shaping in late winter to avoid excess sap flow. If grown in a container, select a sizable pot with proper drainage and refresh the growing medium every few years. Most gardeners otherwise let the tree develop its natural form with minimal intervention.
Avalanche Birch Spacing
When creating a striking grove or a loose row, position trees about 20 to 25 feet apart so each trunk can shine. For a single specimen in a smaller yard, leave at least 30 feet of clearance on all sides. If container-cultivated, start with a pot diameter of 18 inches or larger, upgrading as roots fill out the space. This approach ensures ample room for Avalanche Birch to exhibit its smooth bark and graceful canopy.
Avalanche Birch Information
USDA Hardiness Zones: 3 - 6 |
Plant Type: |
Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight) |
Mature Height: 40 - 50 Feet |
Mature Spread: 20 - 30 Feet |
Spacing: 20 - 30 Feet |
Habit: Upright |
Flower Color(s): Green |
Flower Description: Yellowish-Green |
Bloom Period: Early Spring |
Foliage Type: Deciduous |
Foliage Color(s): Green, Yellow |
Foliage Description: green,yellow |
Seasonal Interest: Spring Flowering, Fall Interest, Winter Interest, 3 Season Interest, 4 Season Interest |
Watering: Moderate,High water needs |
Resists: N/A |
Tolerates: Drought |
Attracts: Bees, Birds, Butterflies |
Container Role: Thriller |
Uses: Borders, Combinations, Erosion Control, Hedges & Privacy, Mass Planting, Specimen or Focal Point, Wetland Areas & Ponds, Wildlife Gardens, Windbreaks |
Features: Attracts Pollinators, Deadheading Not Necessary, Foliage Interest, Low Maintenance |
Brand: Proven Winners |
Common Name: Avalanche Birch |
Other Name(s): Silver Birch |
Scientific Name: Betula x 'Avalzam' |
- SKU:
- 1231020653-pc
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Quart Pot
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

2.5 Quart
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

#1 Pot
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

#2 Pot
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

#3 Pot
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

#5 Pot
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

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Pre-Ordered Plants
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated Spring Shipping Schedule
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants Shipping Now
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.