I sprayed Neptunes Harvest fish/seaweed fertilizer on my blackberries for 3 years, but have since stopped. If you use it, make sure you don't forget to use soil fertilizer as well. If you use it as a foliar spray, it delivers nutrients to the leaves, but I (wrongly) backed off on the ground fertilizer thinking the nutrients were also getting down to the roots and my plants suffered over the long term because of it. Maybe since most vegetables are annual crops, this won't be an issue.

I started using fish emulsion for my roses last year after it was recommended by Marissa at Greenmantle Nursery. Marissa grows her roses organically. I tried multiple brands, and they do not all smell alike--with some the stench is so strong it is enough to make me want to keel over. The difference appears to be in the way they process the fish, with some cheapy brands having the most disgusting odor. I have found two brands whose products smell MUCH better than the others and which give good results with my roses. My favorite is Gro-Tone from Espoma. It's 2-2-2, and while it does smell fishy, they've added mint which makes it less so. The other brand I like is Neptune's Harvest. Their fish fertilizer is cold-processed so as not to destroy "all the good stuff". It too smells fishy, but it is a much fresher smell than other brands. I use mostly Gro-Tone, and diluted to half the strength recommended on the bottle. I find that is plenty and works well with most of my roses (only a few are more avid feeders and need a boost from a powdered organic fertilizer). Melissa

Hollytone is a good low pH organic fertilizer. Sulfur is the best thing going to lower pH. If you are in a limestone area, you need to use a raised bed. Otherwise the limestone affects the soil no matter what you use. Azaleas are not heavy feeders. They need very little fertilizer. So don't try to change the pH with fertilizer. Use sulfur. The recommended doses to change pH are listed in the reference below: Here is a link that might be useful: Lowering Soil pH.

Wrong forum for vegetables