I've started four tubers into pots indoors for earlier start outside. I've used non-fertilized planting mix. Would 10-15-10 liquid fertilizer be suitable to use and how often should I use it? Thanks fo your help.
I have been using miracle grow 10-10-10 and have been giving them a weak solution every few days. I think the fertilizer you have will be fine. I also mix some bone meal in the planting hole when you plant them in the ground.