The Hoaglands Solution for Hydroponic Cultivation

This hydroponic nutrient solution was developed by Hoagland and Snyder in 1933 and it’s one of the most popular solution compositions for growing plants (in the scientific world at least !). The Hoagland solution provides every nutrient necessary for plant growth being appropriate for the growth of a large variety of plant species. The solution described by Hoagland in 1933 has been modified several times (mainly to add iron chelates and the like, but you can use the salts you normally use for preparing your solutions as long as you append to the concentrations given for each element) but the original concentrations for each element are shown below.

N 210 ppm
K 235 ppm
Ca 200 ppm
P 31 ppm
S 64 ppm
Mg 48 ppm
B 0.5 ppm
Fe 1 to 5 ppm
Mn 0.5 ppm
Zn 0.05 ppm
Cu 0.02 ppm
Mo 0.01 ppm

As you may notice, the Hoaglands solution has a lot of N and K so it is very well suited for the development of large plants like Tomato and Bell Pepper. However, the solution is very good for the growth of plants with lower nutrient demands such as lettuce and aquatic plants with the further dilution of the preparation to 1/4 or 1/5.

Also remember that the amount of iron you use should be in proportion with the amount of phosphate placed inside the solution, when used at higher strength, there exists the possibility of iron precipitation if non adequate chelates are used. If possible, try using DPTA instead of EDTA (which is not so good a chelating agent for hydroponics).



  • orozcow
    July 24, 2009 @ 11:13 pm


    I really appreciated the article because I am looking for the macro and micros in ppm. However, what are the initial concentrations of the salts grs/lit

    Warner Orozco

  • sef
    October 5, 2010 @ 7:37 am

    Hello there, thanks for your blog.
    I have a question- how about HBED Fe source?

    • admin
      October 5, 2010 @ 12:23 pm

      Hello Sef,

      Thank you for your comment :o) I have never used FeHBED as an iron source in hydroponics although I believe it would be inferior to FeDTPA due to its stability and cost. I hope this helps,

      Best Regards,


  • Ignacio
    October 14, 2010 @ 3:51 pm

    Excelent work! Thank you. A great contribution for all the hydroponic growers!

  • Joey
    July 19, 2011 @ 11:53 am


    I am working with this solution for some time now.

    However, do you have a reference for ‘However, the solution is very good for the growth of plants with lower nutrient demands such as lettuce and aquatic plants with the further dilution of the preparation to 1/4 or 1/5’? Or did you find out yourself?

    I have also used EDTA but indeed, when phosphorus concentrations change, Fe may precipitate. How do you prepare the FeDTPA i.e. concentrations,…

    Thank you!

  • October 12, 2011 @ 10:48 am


    I have just started my project about using lemna minor as hyper-accumulator and I am looking to find the best culture media for growing Lemna minor. Could you please tell me which culture is good.

    I appreciate your help

  • January 5, 2012 @ 9:15 am

    I cant seam to be able to install on to my mac OSX

  • reza
    May 14, 2013 @ 2:42 pm

    this question is so important for my project
    i have 10 kg pot and i culture Common bean.i prepared hoaglands solution .BUT how much of the solution i have to apply for my pot?
    please answer me as soon as is important for me

  • keshav
    October 8, 2015 @ 8:13 am

    I have stock A and Stock B solutions , but how to apply them , if while applying to be mixed ,it makes the precipitate ?
    after how many hours or what time should I apply Solution A and B ?

    • TP
      November 24, 2015 @ 1:13 pm

      To prevent precipitation, you have to add 100 mg/l bacto-tryphone. However, in this case you may have a problem with contamination with bacteria is you non-sterile conditions.

  • harilal
    January 29, 2016 @ 5:24 am

    I want to prepare hoagland nutrient solution which minus can i prepare it.
    please someone help me,i want it for my agriculture research.

  • May 16, 2016 @ 7:01 am

    Hello sir…i want to prepare hoagland nutrient media…can u please tell me ammonium nitrate can be replaced by any other chemical.because ammonium nitrate is unavailable in market.

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