hello it says 2 table spoon of 20 20 20 fertilizer to one gallon of water, ( I'm talking generally ) but it does not say how much of the one gallon of water to poor in lets say an orange tree growing in a pot. do I use the 1 gallon of fertilized water for each pot or how do I break it down. my confusion is about how much fertilizer to use for each plant in a pot. i do pot planting because the weather in Las Vegas is awe full ( lots of winds lots of heat in summer time) in summer the plants look like they are thirsty but when I check the soil it is wet about 1 inch below surface and under. I hope this is not too confusing.