You ask good questions and you're gonna be fine, btw. I can sense it.
What are you feeding them now and where are they planted now, then become the questions, since different feeding schemes abound depending on circumstances.
Some plants are set up to feed from the living soil, so in that sense you feed the soil and it, in turn, allows the plants to feed from it. Lots of advantages here, but it can take awhile to get your soil to that point. Some people prefer not to add "chemical ferts" to a living soil, since the organic micro beasties might all hop in their micro buses and flee the scene.
Some water soluble fertilizers say like a Jack's Classic are pretty much add water and go. If I were using that or something like it, I'd use a very light concentration more frequently and try to keep them green, but not "blue green". Start with a little, it's easier to up the concentration than deal with toasted nute burned plants. Your plants will tell you when they're hungry.
I prefer hand feeding, using a 5 gallon pail of diluted Neptunes fish/seaweed as the primary feed and then start tossing in some guano solutions as each girl starts flowering in earnest. I'm in containers, ranging from 7 - 100 ish gallons depending on the strain. When I fill the pots I usually give them some bone meal, blood meal and / or some espoma or coast of maine dry ferts sprinkled throughout the containers.
If I were guerilla growing in the ground, I'd probably go with a time release pellet fertilizer. Feeding them organic amendments (bone meal, blood meal ) can be asking for dig ups from hungry critters. Also the fewer times you have to visit guerilla plants, the better.
So, what have you been feeding them and are your plants happy with it ?
