How to Grow Hydroponic Lettuce


Nothing Beats Home Grown Veges

Hydroponic gardening is a gardening method which does not use soil as its medium. Hydroponic gardening is also where the nutrients used are delivered directly to the plant roots. It is a good method to use if you have limited space for gardening. Lettuce is also easy to grow and requires little maintenance especially when it is planted using the hydroponic method.

Let’s not forget that it is also a very healthy salad item so next time you are in the kitchen looking to make that salad to compliment the lamb on the BBQ, just reach for your home grown lettuce.

What you need:

  • Oasis Root Cubes
  • Lettuce seeds
  • Shallow dish
  • Water
  • Plastic cones
  • 5-gallon bucket with tight-fitting lid (dark coloured plastic)
  • Utility knife
  • Fertilizer
  • Epsom salt
  • Calcium carbonate


  1. Firstly, you need to place one lettuce seed in each of your Oasis Root Cube before placing the cubes into a dish of water. Leave them for at least 2 weeks. Make sure that you check the water regularly.
  2. For growing the plants, you need to have a large and dark-colored plastic container that will hold five gallons of water. Next, cut holes in the lid of your container which is large enough to hold your plastic growing cones. After that, place a growing cone within each hole in the lid before setting the lid and cones aside.
  3. The next step is to mix 2 tablespoon of water-soluble hydroponic fertilizer 8-15-36, 1 tablespoon of Epsom salt along with 2 tablespoon of calcium nitrate together in a small cup of water. Stir the mixture until the granules are mostly dissolved.
  4. Five gallons of water is needed to fill your growing container. Add the nutrient solution into the growing container and stir into the water.
  5. After that, you need to fasten the lid to the growing container and place the seedlings and the oasis growing cube into each of the cone.
  6. Your growing container needs to be placed in a location that receives full sunlight.
  7. Make sure that you check the pH level and water for consistency on a daily basis along with any pest problems but normally you should not encounter pest problems when growing plants using the hydroponic method.

If you are looking for a great recipe to use your newly grown lettuce in,  then check out this Beef and lime fajitas recipe from


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  1. June 5, 2014  9:45 am by Jon P Reply

    I heard that the type of water makes a difference. I'm in Sydney where the water is hard. Is there any change to your formula?

    • June 6, 2014  11:05 am by campbellb Reply

      If you have hard water then it's a good sign that it will contain the right nutrients (calcium carbonate) for hydroponic growth.

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