Canna Boost 5L. Canna Boost Accelerator can be used from the first signs of flowering until the final week before flushing at a dilution rate of 20ml to 40ml per 10 litres. However while using the boost on its own will generally speed things up and make a difference to taste, we have found that for significant increases in yield you will need to use a PK booster, such as Canna PK 13/14, as well.
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