CANNA Magnesium is essential for photosynthesis. It is an essential atom in chlorophyll. Furthermore, magnesium influences other pigments and physiological processes. This makes it an essential element in the development of the plant. CANNA Magnesium can be directly absorbed by the plant and therefore the effects can be seen quite soon. It can be used as a fertiliser for magnesium deficiency and as a supplementary nutrient to stimulate the growth and bloom.