New Dawn is one of the "Earthkind" roses, called that because they need a minimum (supposedly none) chemicals to keep them beautiful, kind of like the Knockouts - pest and disease resistant, I guess you'd call of them. New Dawn is only one of them (although a lovely one). Chamblees carries a bunch -
http://www.chambleeroses.com/o... - but I bet there's more out there, just for the googling!
These guys explain it better than I do (Texas A&M):
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"Roses with an EarthKind designation have been proven to have tremendous heat and drought tolerance, even in temperatures of 105 degrees Farenheit," George said. "They also do well in almost any soil type, from well-drained acid sands to poorly aerated, highly alkaline clays. In most loam or clay soils, these roses do not need commercial synthetic or organic fertilizers as long as one follows our EarthKind compost and mulch only approach to soil management. "
Many of these roses have been out there for years, they're just picking up the designation now.
