How to Prepare Peat Moss for Flytraps, Sundews and Other Carnivorous Plants




Introduction: How to Prepare Peat Moss for Flytraps, Sundews and Other Carnivorous Plants

An explanation of how to prepare Canadian peat moss when using it to pot carnivorous plants such as the Venus Flytrap. Learn how to make peat tea in the process, which can be very beneficial for nepenthes and Venus flytrap growth.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Introduction, Overview, & What You Will Need

Many people do not wash or soak their peat moss and use it straight from the bail with good results. Even when using the highest grade professional peat moss, we still follow a soak and rinse process which helps kill any fungus or bacteria spores that might be inside the peat.

Our process also removes any extra nutrients, lowers total dissolved solids (tds), and the left over peat moss tea can be very useful for you carnivorous and non-carnivorous plants.

You will need a trash can or a large container with a lid and lots of distilled or reverse osmosis (RO) water. We use a 30 Gallon Black trashcan and have an RO filter nearby.

Step 1:

Start by placing chunks of peat moss in your container. Break it up by rubbing the chunks between your hands. Remove twigs as you flush up the peat moss. Next, you will add your water. Do not simply hydrate the peat moss. If you filled your container ¼ of the way up, then use enough water to fill it to the ½ way point. Mix thoroughly and allow it to sit for a few minutes. More twigs should float up and can easily be removed now.

Step 2: Finishing Up & How to Utilize the Leftovers

Once everything is mixed, simply place the lid on top of your container and allow it to sit for 2-5 days. During this period, bacterial and fungal spores will germinate making them easy to kill with a weak fungicide. Excess nutrients will be leached out as well, which makes your peat moss better for carnivorous plant applications.

After a few days of steeping, you will need a clean microfiber rag, a mixing bowl or large pot, and a container for your peat moss. Optionally, keep another container handy for collection of your peat moss tea. Place the microfiber rag in your bowl and begin removing handfuls of peat from your "trash can" and plopping it on the microfiber rag.

Step 3: Remove Excess Water, Finish Preparation & Optionally Make Peat Moss Tea

When there is a decent sized pile of peat on your rag, you can pick it up from all four corners and twist to remove excess water. Optionally, you can add some extra distilled water before twisting it out for a better rinse or use a diluted solution containing distilled water and a fungicide such as daconil. Skip the fungicide if you want to use the peat tea to add organic matter to a vegetable garden.

Step 4: Carnivorous Plants Love Peat Moss Tea! Reap the Benefits

Peat Tea for Adjusting the pH of Carnivorous Plant Soils (it can also be used as a general soil amendment for your non-carnivorous garden)Peat Tea can also be used to correct pH problems that occur when a carnivorous plant has been in the same media for an extended period of time. It can also be used to aid in the production of red pigments that you might want to make stand out more.

Before using peat tea on any of your carnivorous plants, you will want to strain it. I place a ball of long fiber sphagnum at the bottom of a large pot and simply let it drip through. Test the TDS of your tea to ensure it is safe to use on your carnivores. If the TDS reading is high, then use about 1-2 cups of your tea per gallon of water. If you have a pH meter, we highly recommend standardizing this solution to a pH of about 4.5-5.0. Use the peat tea immediately or pasteurize it and use within a week or so.

Peat tea can be an exceptional supplement for nepenthes, especially if they have been growing in the same pot for a long period of time. The low pH solution will rejuvenate old soil and as mentioned before, peat moss has been shown help produce colorful carnivores. The same solution can be used for Dionaea during winter dormancy or when spring growth begins, but you are not ready to repot your plants yet. We generally flush nepenthes soil with distilled water about 2 weeks after the application of peat tea. This finalizes the removal of mineral build up and vastly extends the life of your potting media. Happy Growing! ~Southbay Traps~

Be the First to Share


    • Indoor Plants Challenge

      Indoor Plants Challenge
    • Trash to Treasure Contest

      Trash to Treasure Contest
    • Sculpting Challenge

      Sculpting Challenge

    6 Discussions


    3 years ago

    I'm confused: you say that this, "removes any extra nutrients, lowers total dissolved solids (tds), and the left over peat moss tea can be very useful for you carnivorous plants."

    But isn't using the "peat moss tea", just putting the tds, bacteria, and the extra nutrients right back into the peat that you have now used to plant your carnivorous plant in? Just wondering......... :-)


    4 years ago

    What about using boiling water to kill the spores? One pasteurizing method involves holding the liquid at 140 degrees Fahrenheit for 20 minutes.


    Reply 4 years ago on Introduction

    The idea of using boiling water comes up quite often but the problem is that when you add boiling hot water to peat moss it will break down faster. Eventually mold/mildew will work their way back into the peat and now they have an even better place to grow!

    I havent taken any temperature readings, but if I had to guess... A black trashcan filled with water & peat should reach 120-140 if placed in partial sun.

    Within a day or two anything harmful should be gone and your peat is still nice and fresh


    Reply 4 years ago on Introduction

    Thanks!, I really appreciate the compliment and think you might have inspired me to write up a few more tutorials regarding carnivorous plants. :D