If your plants are suffering from a deficiency problem, this may be the answer. Mononutrients are essential for plant development. Canna Mono Calcium helps to stabilise plant tissue. This can be used with Canna nutrients or any other nutrient range.
Canna Mono Calcium comes in litre bottles and has 15% Calcium.
Have a look at the Canna Deficiency Guide to see if your plants are showing signs of calcium defficiency.