Do you have favored yellow or white hybrid teas or floribundas in your state? I'm in Northern NJ trying to restore our county rose garden. Our rose garden site is actually closer to your hardiness requirements (my son goes to Grinnell College - so I know). Peace is the only survivng white - we will not be spraying fungicides - so we are looking for foliage that remains looking good and petal count that remains on the rose despite high heat and humidity - plus pollution. any suggestions are welcome, Thanks