timed release fertilizer

[Rhonda_in_FL]

For our climate, the red Dynamite is recommended by local commercial growers and I have never seen any negative symptoms...I use it on vandas and catts...I don't grow but a few thin leaf oncidiums--but my heavier leaved oncids (psychopsis) love it.

I wouldn't begin to make recommendations for northern or under lights growers--I wouldn't know my a$$ from a lunchbox north of Orlando!

[Don Perusse]

Okay kids here is the scoop about "Dynamite Fertilizer". It comes in three "colors" 1)BLUE = Manesium Sulfate. 2)GREEN = All Purpose, 18-6-8. 3)RED = Vegetable & Flowers, 13-13-13. Red is the one Kathleen mentioned in her post. It is considered a "balanced fertilizer" which is generally recommended for most orchids unless they have a specific deficiency. Peter's 20-20-20 would do the same, tho not time released. I firmly beleive that you need to be careful using a time released as you "could" over fertilize. Remember the rule: "weak, weekly", should apply unless you have ideal conditions, which [u]most[u] hobby orchidist don't have. Good luck to all time releasers!

[Ross]

Originally Posted by 1kathleen

I use only rain water here also as the sodium content in our water(reverse osmosis on island) is sky high.

Wow, something's not right here. RO water should normally be pure (no sodium. Apparently your water provider is mixing a bit of seawater in with the RO like they do in Ft Meijer Beach.