Question for Al: Ammonium Toxicity
Al, this is a bit off topic for containers, but your other post a few weeks ago about the dangers of using organic ferts during cold, wet weather got me thinking.
I live in the mid-desert southwest. If is still pretty cold in Feb, but I see rose care articles saying one should start with organics like fish emulsion, alfalfa, seaweed etc at this time.
I'm wondering why this is repeatedly advised? Maybe ammonium toxicity is more a potential issue in containers than in-ground?
I'm just trying to get more wisdom on the topic. I don't want to endanger my plantings but I also don't want to miss a key time to jumpstart my spring growth season.