Abstract: A liquid sprayable leaf fertilizer composition which contains a growth-promoting, long-chained, substantially water-insoluble carbon compound, such as an aliphatic alcohol, in a liquid carrier substance. The composition includes the long-chained carbon compound, particularly an aliphatic alcohol, dissolved in oil, the composition being an oil-in-water emulsion. The invention also relates to the use of the composition for supplying a growth-promoting substance onto the superterranean parts of plants. The aliphatic alcohol is preferably 1-triacontanol, and the oil is a vegetable oil, such as rapeseed oil.