Last year was my first grow. I had 3 plants and every feeding I mixed all my nutes into a gallon jug to feed each plant. This year I have 12 plants going outdoors. Can I premix the fertilizers in a spray that attaches to a hose? Any suggestions would be appreciated. I was thinking of getting a rain catcher and mixing a large amount of nutes into it and feed the plants with the attached hose. I’m probably making this harder than it has to be. Any suggestions?