A great lady in the history of biodynamics! It was by sowing one row of radishes methodically every day that she discovered the influences of the positions of the Moon and the planets on plant growth. In 1952, she established correlations between the growth of her radishes and the position of the Moon. It was at this point that the idea of formalising these interactions between the plants, the elements and the lunar calendar was born. Her observations let her to divide the transit of the Moon through the Zodiac into four - root days, leaf days, fruit days, and flower days.