I thought it would be interesting to tell our fertilizer tales.....
Currently, I am trying Dyna-Grow liquid. Like foliar feeding and seeing how various orchids respond.
Have been fertilizing weakly weekly.
I shall update as this experiment progresses.
What do folks use on their Paphs?? Bulbos??

I fertilize with the MSU granules for Reverse Osmosis water plus Physan 20. I've gone from every two weeks to every three. I sprinkle ground oyster shells on my paphs and phrags every fall.

Thanks, Kathy! That is interesting.

I usually fertilize with Peters - I use a balanced fertilizer like 20 -20 -20 during regular growing season ( mostly Summer outside and once a week)
In Summer I also add Magnesium Sulfate once in a while ( Epsom Salt) at a teaspoon/gallon. It helps keeping leaves green.
I switch to fertilizer containing higher levels of Phosphorus as in 10 -30 -10 or even middle number 50, when ready to bloom. ( mostly inside about once a month)
At least that's what I aim to do, but my schedule is not written in stone. And I always spray the whole plant.

Here is a good list showing which ones of the Phrags and Paph species need the Calcium additions.
http://www.slipperorchids.info...

Great information, Ursula! And thanks so much for the Paph Calcium info.
Is Peters still available? If so, where do you purchase it?
Epsom salts are something I always use on my roses (a Martha Stewart tip), never thought of the orchids--- love it!
Kathy, Physan sounds like an important addition.
Thanks, Kathy and Ursula!

Just looked up every paph and put this info in my notes. Then I put it permanently on the right side box info under "CULTURE SHEETS" so we can look it up anytime.

Oh, good thing!

Hmm, mine is a cross between a NO and a YES. Since the majority are yes, I suppose it could use just a little?

I wrote yes for the crosses like that. Won't hurt. I've always used it on my phrags (all nos) with no harm.

I don't know how familiar you guys are with First Ray's website, but he has a ton of great info there. Here's his take on fertilizers and there's a calculator at the end of the article for those that are math challenged like me.
https://www.firstrays.com/fert...
I pretty much fert at 125PPM every other watering. Masdies get about 50PPM every other watering, other wise they tend to suffer from too much. I use collected rain water.

Bill

I'll have to read that again when I can absorb it all. Very interesting, Bill. Thanks!