Pros and cons of using bone meal and bloodmeal

[gego]

Troy, this is what I use.



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[gego]

Its mix with phosphoric acid, calcium is readily soluble. Good supply of P too.



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[troy]

Thanks!! I'll be able to reference this when my supply runs out

 

[mrhappyrotter]

Late to the party and already covered but the main cons of bone meal (to me) are ...

1. Develops a moldy, musty smell very quickly, and it persists for a week or few.
2. I usually end up with gnats / fungus flies after an application.

But, the pros ...

1. It's a nice "organic" ingredient to add to my otherwise mostly inorganic potting mix.
2. It's slow release, set it and try to forget it (see cons).
3. Doesn't result in salt build up (so I've been told).
4. Inexpensive (this is relative).
5. Cultivates microbes and microfauna at the root zone.

 

[Rick]

great slow releases of N P and Ca

I would cut down on the amount until you get out of the fly/gnat issue.

The orchids hardly need any so you don't have to put yourself through the usual listed cons if it cut way back.