Other Names: Asian White Birch, Betula platyphylla var. japonica whitespire Zone: 4 to 7 Growth Rate: Fast Plant Type: Deciduous Tree Family: Betulaceae Native Range: Manchuria, Korea, Japan Height: 40 to 50 feet Spread: 15 to 30 feet Shape: Pyramidal Bloom Time: March - April Bloom Color: Yellowish brown (male) and green (female) Flower/Fruit: Inconspicuous flowers in early spring followed by 1-1.5" fruit on drooping catkins Sun: Full Sun to Part Shade Water: Medium to Wet Maintenance: Medium Fall Color: Golden/yellow Drought Tolerance: Moderate Site Requirements /Soil Conditions: Best grown in medium to wet, well-drained, sandy or rocky loams in full sun to part shade. It needs consistently moist soils. Consider using soaker hoses and bark mulches to keep the root zones cool and moist. It needs little pruning, but if necessary, prune during the dormant season. Avoid pruning in spring when the sap is running. Performs best in cool northern climates where summer temperatures rarely exceed 75 degrees F. and where root zones are generally covered with snow throughout the winter. Culture: Birches adapt to a wide variety of soils, including winter-saturated soils. It looks sensational planted in a grove. Lower branches can be removed when they are small to show off the beautiful trunk, but in general, birches respond poorly to pruning. The best tactic is to plant the tree where is has plenty of space and leave it alone.