Which brands of coir and companion fertilizers have you found to have outstanding performance for growing container strawberries and ornamentals such as wildflowers, oriental lilies, roses, peonies, and gardenias? Which brands to stay away from and why?

I read coir from Sri Lankan sources are better QC'd and allow for better plant performance. GrowCoir is one brand I know that tested and performed better than Canna and Sun Leaves in one comparative study in 2005 from Utah State University. However, what physical and chemical specifications do you look for in evaluating the purchase and quality of your coco coir?

What hydroponic grade and organic fertilizers have you found work best with your coir mix in containers? Did you have to measure pH and measure ECE to maintain plant health and performace with your set up? Please indicate your mix composition and plant species.

All opinions, references, and experiences welcome!