I have linked to the recipe for both gritty mix and 5-1-1 below. I really think your tomatoes will do much better in 5-1-1 than gritty mix in containers. The gritty is best for long term container plants. But the 5-1-1 mix is excellent for annuals, including vegetables, that complete their growth in one season. Its also cheaper and easier to find ingredients for. Here is a link that might be useful: Container Soils recipes & discussion

yaso, My primary reason for suggesting buying an organic potting soil from a producer you trust is the company has done a lot of the hard work, assuming they are honest, adjusting the potting mix so that the critical components are where they should be. This may be too much information, but those parameters are total porosity, air space, container capacity, available water, unavailable water, bulk density, pH and cation exchange capacity. Also, nutrition (fertilizer) in some form is typically added so that you can grow at least for an initial period without additional nutrition. All of those things are actually pretty easy to test, but most folks understandably don't want to be bothered. If you can not find good organic, potting soil at one of your local garden centers (I avoid HD or Loew's), try a hydroponics store. Irrespective of what you feel about what their primary customers grow, their selection of high quality potting soils and organic components is far superior to the standard garden centers in my area and I hear everywhere. I have been successfully growing blueberries in pots for several years. I grow Jersey, Rubel, Rancocas, Bluecrop, Elliott, Legacy, Misty, Patriot, Revielle, and, as of last Fall, Elizabeth. Yes, I like the old strains. I agree with shazaam that pH management for blueberries is atypical from most of things folks grow. I did a lot of research before I chose my media and I chose not to use the 5-1-1 media and instead went with a media recommended by Dave Wilson Nursery. http://www.davewilson.com/community-and-resources/videos/blueberries-planted-container http://www.davewilson.com/home-gardens/growing-fruits-and-nuts/growing-vine-and-bush-fruits/blueberries-containers I did it because the water & nutrition management of the 2 media are different and I prefer this media which I find more forgiving. That said, you should be able to get excellent results using the 5-1-1 with careful management. Two words of caution. First, be aware that all components vary in their physical properties EVEN from the same producer. Here is one scientific publication outlining meaningful differences from various Canadian peat mosses. http://hortsci.ashspublications.org/content/42/2/349.full.pdf The same is particularly true of pine & fir bark where tremendous physical differences have been noted in barks from the same producer harvested at different times of the year or locals tens of miles apart. The second caution is to test the pH of a test batch your media with all the goodies added prior to adding the soil sulfur. I got very lucky & the components I used following the DWN recipe landed me on a pH of 4.9 without any added soil sulfur. The same is true of the 5-1-1 or any other mix. Your blueberries will not do well at the wrong pH. I apologize for adding to your reading list, but here are some excellent blueberry resources: http://nysipm.cornell.edu/organic_guide/blueberry.pdf https://attra.ncat.org/attra-pub/summaries/summary.php?pub=14 http://www.umaine.edu/mafes/elec_pubs/bulletins/b852.pdf http://hortsci.ashspublications.org/content/43/1/51.full.pdf+html Good luck with your blueberries!

I thought I posted this on the gardenweb forum. Now it's houzz? Had to sign up for a new user name. Anyway soo - you can get the Naked Gardener Compost or Debco Premium Potting Mix from Masters (closing soon). Course Perlite is from The Perlite & Vermiculite Factory Myaree (much cheaper than anywhere else). Sand I got from a bulk landscape place (lawn mix) but you can get 10 or 20kg bags of builders sand at Bunnings. Zeochlor is in the pool section at Bunnings. Rock Dust I got from the manufacturer direct somewhere in Bibralake (called Natural PK) but I think but you can now get a similar product from Waldecks (in Myaree at least). Waldecks also sell bentonite clay. I still want to try the gritty mix but getting my hands on all the materials has proved very difficult when I tried last year. I found a Queensland company that makes course DE (for mopping up oil/chemicals) but they didn't have a distributor in Perth. Nobody I could find has pine bark in the right size - and even if they did I'd have to by a cement mixer and modify it with a fine wire to screen it. Honestly, if an agricultural company were to produce the gritty mix and sell it in bags I think they'd make bank - even considering how long it lasts.

Trust you found one....