Jim, I read somewhere that high nitrogen fertilizer causes the bulbs to produce lots of leaves in expense of the bulbs. Is this true? Have you experienced this with other slower growing amaryllids like South African winter growing ones? Nhu -- http://www.flickr.com/photos/xerantheum/ On Fri, Jun 10, 2011 at 4:29 PM, J.E. Shields <jshields@indy.net> wrote: > Potassium (K) balances nitrogen (N) approximately. Bulbs use large amounts > of both nitrogen and potassium. The phosphate (P) is not so important. I > recommend an N-P-K ratio of 20-10-20, but 20-5-20 would probably work just > as well. Bulbs use much less phosphate. >