Fertilizers - what's your preference or pattern?
 

I'm interested in what fertilizers everyone uses.
I try with lots of different types. At the moment I'm using a few different types in rotation, high N most weeks, high P or K every other.
At the moment I use ( Australian market):
Nitrosol,
Grow n flower,
Amino - K,
Vanda flower booster.

I notice most growth from grow n flower ( chemical, non organic) but I hear great things and feel that I'm getting good strong growing from nitrosol (organic - boosted with blood n bone + see weed, but doesn't fall under the "certified organic" if you know what I mean).

I'm just interested in finding out what other people use and what are a good reliable fertilizer for flowering, as it's not really instantly noticeable and also keen to find out when is the optimum time to fertalize flower boosting fertilizers.

As plants go, orchids are very slow growers with very low nutritional needs. You are very unlikely to see any improvements from one fertilizer to another short-term, and deficiencies are likely to be seen first, but they could be 6 months to a year - or more - down the line before they are noticeable.

I have just hit the two-year mark feeding K-Lite (12-1-1-10Ca-3Mg) at 50 ppm N (the first year), 35 ppm N (the 2nd) at every watering, and I am seeing better growth and more blooms than ever. I attribute that to the very low, but steady feeding rate.

If you compare the threads I posted this year to last year especially my re-bloomed orchids: it is evident how k-lite have a great improvement on my plants. By looking at the leaves, roots and the flowers seem to be bigger flatter and with vivid colors.
I also use seaweed mix added to my fertilizer ever since I started growing orchids so the seaweed and k-lite seem to compliment my plants very well.

I use a balanced 12-12-12 water release in bags made of pantihose, so that everytime I water my vandas they get a little bit of fertilizer. I've had a lot of luck with this method, although our Central Florida heat and humidity certainly help as well.