Certainly. It's alot easier than you might think. Just treat the plants you were given as if they are any other plant, by that I mean don't try to do anything special. Don't give fertilizer using a method where you're just guessing how much to give. That's how people end up in trouble. Don't use a foliar feeding (spraying leaves) method at all. You won't need to and there's a huge likelihood you will hurt the leaves. Here's what you do:
You get one five gallon container like a bucket, for each plant. You fill the bucket halfway with decent potting soil, and it needs to be potting soil, not Light Warrior, which is too light. But use good potting soil you can get at your grow store or decent hardware store. I would suggest you avoid Miracle Grow products because they seem to be real hot with fertilizer. After filling the bucket halfway, you put in one cup or healthy handfull of Foxfarm Fruit and Flower fertilizer, also available at your grow store. There are other ferts you could use, like Whitney Farms 5-5-5 Organic (which is good stuff), however the Foxfarm powder fert is loaded with bacteria. It's this bacteria that does the trick. It breaks powder fert down to a molecular level where it can be taken up by the plant roots easily. Most potting soils are sterlized, meaning they don't have much bacteria to them. The sterilizing is done to protect your plants, however, it leaves no bacteria to break down ferts. Thus you must add the bacteria, but you don't have to worry about this cuz it's in the Foxfarm Farm fertilizer already. Read the label and you'll see alot of different bacteria and fungi on the label.

Ok, so you have a bucket half full with the soil and fert mix. Now you do the exact same thing with the empty space of the bucket. You fill it with soil and mix in a cup or handful of FF fert again. Then transplant into the bucket. Repeat this method with every plant. You shouldn't need to do anything else for the life of the plant. People have problems because they throw in fert here and there, not really knowing what they are doing, just hoping it will work. It won't. The plant has a life all its own. It doesn't need to be told what to do. Just give it the right environment and it will grow fine.