Fertilizer which does not contain urea as a source of nitrogen . When selecting a fertilizer, it is important to choose one that does not contain urea nitrogen, since urea causes Root Burn on African Violets. One of the first 10 commercial hybrids introduced in 1927, all of which had blue flowers. More information . More information .
Flowers are white with a blue center.
Leaves are medium green. More information . In the U.S., the percentages of these elements are required to be on the front label of all fertilizers. One of the first 10 commercial hybrids introduced in 1927, all of which had blue flowers. More information .