Do you have agave syrup or molases without sulfur. I got good results with those when the plant was looking sad.
In small amounts it gives potassium nitrogen and some trace elements to the plant. Go light with it. To much and your soil will repel water. The agave is straight sugar from a plant. It is great food for the plant. Because it came from a plant these two things get taken up by the plant fast. Molases is even good for when you don't feel so hot. Agave is a great sugar sub for a diabetic. Doesn't get absorbed by our bodies fast. Try like a small teaspoon to a gallon of water. Worth a try.
P def. The bigger plants need more than 1/3 strength, especially in flower. You're starving the big ones.
I use molasses all the time. Molasses, diluted a teaspoon at a time in water, feeds the microbes in your soil to increase their population, and it has a good bit of K.
Well, that is what it is. You didn't feed it enough. It was quick, because it's in flowering and it used up all the phosphorus you had in the soil. Flowering = Can show deficiencies in a day or less if it's not getting what it needs.
Also, they are definitely big enough.
