Scott’s Miracle-Gro purchased Botanicare in 2016 as well as Dutch lighting manufacturer, Gavita. I imagine it will continue to buy out small independent cannabis suppliers and manufacturers as it moves to secure its place in the fastest growing horticulture market segment.
Grow-More’s 3-part line is the most comparable nutrient system to Gh’s Trio that I have been able to find, although it is not as readily accessible as GH products. Aside from it your best options would be Canna, Emerald Harvest, Nectar of the Gods, and Advanced Nutrients. There are certainly more options but if your looking to stay away from Scott’s Miracle-Gro long term, these companies offer you the safest bet, as they are unlikely to sell off to a larger company such as Scott’s.