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Sep 19, 2015 - Apr 14, 2020 - Compare birch tree types native to the US, including river birch, paper birch and yellow birch. Plus, learn how to plant, care for and use birch trees in your garden Preferred Conditions Space them 15 to 20 feet apart and at least that far from hardscape elements. Avoid planting them in shallow soil in USDA zones 8b and 9a, so they can establish deep root systems to survive the heat. River birch grows best in full sun, but tolerates partial shade. Mar 12, 2019 - Soil acidity - Birch trees do best on slightly acidic soils (pH 5.0 - 6.5), though the insect pest, than are the birch species without white bark (river birch, Heritage Mar 23, 2020 -