See Leaf Nematodes and Root Nematodes . Early African Violet cultivar from which many of today's varieties have been developed. One of the first 10 commercial hybrids introduced in 1927, all of which had blue flowers. More information . Specifically, the pH of a neutral substance measures 7.0.
Flowers are white with a red edge.
Leaves are medium green. More information . More information . More information . More information .