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high elevation azaleas and rhododendrons

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  • John Thornton
    mike ive found that rhodos and azaleas in the wild usually grow on high magnesium soils they might be less efficient utiliziers osoil magnesium some of the
    Message 1 of 1 , Oct 1, 2005
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      mike ive found that rhodos and azaleas in the wild usually grow on high magnesium soils they might be less efficient utiliziers osoil magnesium  some of the difficult varieties often grow on magnesium silicate derived soil or rocks  for example r occidentale grows on serpentine mgsi soils in californea  r catabiense insularis grows near talc mgsi formations ahillsborough in orange co nc  rmakinoi grows on serpentine rocks in japan  many common farm crops will not grow on mgsilicate derived soils bob badger suggests using 1-2lbs dolomitic limestone per cu yd togrow r occidentale on the west coast  r chapmanii grows on high mg sand in fla r chapmanii and kalmia latifolia respond remarcably well to dolomite application on my heavy clay soil  they have also responded well to dolomite application for ron miller of pensacola fla on his sandy soil  to test soils for mineral content get samples below organic matter accumulation since this organic matter might not reflect true soil minerals  other factors such as temperatures surely would be afactor in growing mountain plants on the coastal plains  john thornton


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