I used the canna bio line and did gave only water at the end and got a better taste imo.
With my first time water only grow i was a little worried how to starve them at the end since my mix had nutes for several runs but the plants did that on their own. They got lighter in color in the last weeks like when i starved them.
I tend to let them go very ripe for best effect. You can wait for the final swelling of the buds. Every flower will look swollen and blown up when ripe, normally starting from the bottom. Also the small calyx at the branching will look that way.
With my first time water only grow i was a little worried how to starve them at the end since my mix had nutes for several runs but the plants did that on their own. They got lighter in color in the last weeks like when i starved them.
I tend to let them go very ripe for best effect. You can wait for the final swelling of the buds. Every flower will look swollen and blown up when ripe, normally starting from the bottom. Also the small calyx at the branching will look that way.