According to author and horticultural professor Jeff Gillman, who has conducted extensive research on blackspot remedies, a spray composed of one part milk and two parts water is the best answer to the disease. He says this simple solution, if applied weekly, will control blackspot as well as any synthetic fungicide, including Chlorotalonil.
Sensation The best-selling lilac on the market, Sensation offers purple blooms distinctly edged in white. It gets big fast, so have the courage to cut it back, says Ted. Unfortunately, theres a bit of a price for the distinct color: Like Primrose, its not as fragrant as other lilacs, he says. But in a bouquet its dynamite. Name: Syringa Sensation Growing Conditions: Full sun and moist, well-drained soil Size: To 12 feet tall and 8 feet wide Zones: 3-7