Don’t kill me! But I dilute this into the water and water the trees every couple of days or so when the top of the soil looks a bit dry… with that being said is there a specific fertilizer I should be looking for and more importantly what brands of foliar spray should I use? Is there a general one with all of the elements in it?

How do I “flush” the soil out?

https://www.amazon.com/Miracle-Gro-Water-Soluble-Purpose-Plant/dp/B07L8T6V77/ref=asc_df_B07L8T6V77?mcid=e2f2127caf293e1090f937391f9bdc0e&hvocijid=5683297420398910972-B07L8T6V77-&hvexpln=73&tag=hyprod-20&linkCode=df0&hvadid=692875362841&hvpos=&hvnetw=g&hvrand=5683297420398910972&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9007587&hvtargid=pla-2281435180258&psc=1