One extra step that you can take to figure which is the best fertilizer for you, is to keep a few plants from each treatment. I don’t know maybe 5 or 20 from each treatment. Whatever you can spare to keep. That’s up to you.
But let’s say you don’t want to top-dress them, you feel the quality is there or you just don’t want to add to the expense of producing this plant. Then it would be in your best interest to know which controlled release fertilizer in the trial will finish off best when your end user takes that plant into his or her possession. Or in other words which of the fertilizer treatments will truly give you and your customer the most longevity. Which fertilizer will keep their plants the greenest and healthiest the longest, with minimal effort on their part.
Just like my job is not over after you buy a bag of Osmocote or Suncote from me. I need to be positive that you have the best experience ever when you use my product. And trust me I strive to do that.
You too, after you sell a plant your job is not over, the greater experience that your customer has with the plant that they purchased from you, the more likelihood that they will come back tomorrow, to buy from you again.