When Do You Fellas Suggest Using Canna Pk 13/14? In Soil

[Sunset Man]

I have Canna PK 13/14, I’m not sure when to use it and how much per gallon to use. Can anyone help?

 

[newh]

week 4 or 5,it depends on how long flower time is and its only for a week to 10 days

 

[Sunset Man]

Do you know how many ml/per gallon of water ?