I'll look further, but you could use a low level of a balanced fertilizer, such as 20-10-20 or the tomato food, at 1/4 to 1/10 the "normal" rates, and then supplemente it with potassium sulfate. Ask at a farm store or elevator for potassium sulfate. You may need to buy alot to get it, I suppose. Potassium sulfate is roughly 40% K (potassium). I'll follow up with a friend who works for Scott's (makers of Miracle Grow, Peters, and Jack's Professional plant foods) and see what they have in the way of specialty formulations. My supplies came from chemical supply houses and cost about $100 per pound, not something others will want to emulate. Jim Shields At 05:37 PM 3/28/2013 -0400, you wrote: >re: Fertilizer for Nerine Jim uses. >I looked everywhere for any fertilizer remotely similar to the one you use >(cannot mix my own) and the only one with potassium similar to the formula >you gave is the tomato fertilizer. Nitrogen is way higher to "0" of your >formula, but it is low as they go in commerce. I suppose that if I bought a >box of nitrogen and a box of potassium I could theoretically mix my own if I >knew how, but it would not be water soluble as the only ones sold separately >are granular. Would you go wit the tomato thing in a pinch? >Bea in Ontario zone 5 > ************************************************* Jim Shields USDA Zone 5 P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Lat. 40° 02.8' N, Long. 086° 06.6' W