I used to see the commercials on TV with comparisons of plants grown in miracle gro vs. plants not grown in miracle gro and think, "yeah, right! Dirt is dirt." Well, not anymore! I have three planters on the same deck rail and all three were planted on the same day and the plants all came from the same greenhouse. One had all new miracle gro potting mix and the others had last year's dirt slightly amended. The plants in miracle gro are twice the size and the amount of flowers.... Night and day. You can clearly see the difference in my attached pictures.
Awesome product and you have a customer for life.