With the Canna Line of fertilizer, wich supplement is the most important?

I will change my fertilizer for the Canna Terra products. But there are many supplements (Rhizo Tonic; Canna Zym; PK 13/14; Canna Boost) and some are costly. From your experience wich supplement i shoud buy now and wich one i could buy later.Thanks.

Rhizotonic and CANNAZYM you should buy now.

PK1314 buy later.

Boost isn't worth the price.



J