Very low PK fertilizers. (K-lite)

[DavidCampen]

Originally Posted by Ray

The concept of phosphorus being a "bloom booster" is overhyped marketing.

When Dr. O. Wesley Davidson of Rutgers University invented what is now Miracle-Gro 30-10-10, folks were thrilled by the foliage growth they saw. Unfortunately, that high nitrogen content also tended to reduce, delay, or stop flowering altogether, so they added cheap phosphorus compounds to "dilute" the nitrogen back to an acceptable level, therefore allowing the plants to bloom (not "boosting" it).

If Miracle Grow 30-10-10 having an N:P:K ratio of 3:1:1 is high nitrogen then shouldn't K-lite with an N:P:K ratio of 100:1:1 be called super high nitrogen?