Water and air in the soil are important for good plant growth.
Good drainage and a porous surface helps water penetrate the
soil into the root zone. Water and organic materials in the soil
together interact in such a way as to benefit the roses. As
organic matter decomposes in the soil, it gives off carbon
dioxide which replaces some of the oxygen in the soil. Thus,
soil air contains less oxygen and more carbon dioxide, but
carbon dioxide is dissolved by water in the soil to form a weak
acid. - Sunday, 05 May 2013 22:38 - by Ed Zasadzinski, past
president of NE Ohio Rose Society - Sunday, 05 May 2013 13:14 -
By Kathy Van Mullekom Daily Press (Newport News, Va.) (MCT) Any
azaleas flowering in your yard this spring are probably Asian in
origin _ not American species that offer different sights and
pleasing scents. "Azaleas native to the United States are
colorful and well adapted to our challenging climate," says Les
Parks, curator of herbaceous plants at Norfolk Botanical Garden
in southeastern Virginia. - Sun