How To Easily Make A Self-Watering Container

by Mike Lieberman on June 2, 2010 · 36 comments

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One of the best parts about making self-watering containers for your garden is that it’s cheap. Most of the supplies needed are either already laying around the house or you can easily get in your neighborhood.

Container Within A Container and No Pipe

    Tools

  • Drill
  • 1/4″ bit
  • 3 1/2″ hole saw for metal and wood
  • 1 1/4″ hole saw for metal and wood
    Materials:

  • 2 food grade 5 gallon containers – 1 for planting container and 1 for reservoir container
  • 1/2 deli container for wicking basket
    Instructions On How to Make With 2 Containers and No Pipe

  • Use the 1/4″ drill bit to drill holes in the deli container.
  • Attach the 3 1/2″ hole saw attachment to the drill. Drill a hole in the bottom of the container. I’ve found drilling in a counter-clockwise direction to work best.
  • Reattach the 1/4″ drill bit and drill holes in the bottom of the planting container to allow for drainage.
  • Put the wicking basket in the middle of the reservoir container.
  • Place the planting container in the reservoir container aligning the wicking basket with the hole in the middle.
  • There will be a little space between the wicking basket and the planting container. You can duct tape the basket to the bottom of the container, but it’s not necessary.
  • Hold the containers up to the light. You should be able to see through the reservoir container where the planting container is. Using the 1 1/4″ hole saw, drill a hole 1/4″ in the reservoir container below where the planting container is.
  • This is the hole where you will water the plant from.
  • That’s it. You’re done!
  • http://obsessivegardener.blogspot.com Sylvana

    We drink water from copper pipes. We water plants with water from copper pipes. How is a copper pipe in the soil possibly going to harm the plant?
    $40 for a 10' piece of copper pipe? I could probably ship you that much copper pipe for way less than that. I think a 3/4″ 8' copper pipe here costs around $10.
    Either way, I think your containers are great. And recycling rocks!

  • Mike Lieberman

    I'm with you Sylvana, but some haters have said that the pipe is bad for the roots of the plants. Either way, this is another low cost way to make the containers.

    People will always find a problem with something.

  • http://dysfunctionalkitchen.blogspot.com MsChristy

    *raises hand* Yay, that is so cool that you tried my idea and it worked!

  • Mike Lieberman

    Awesome. Thanks for the idea. Updated to give you credit for it.

  • Sketchkat06

    Good solution. You could also consider using PVC pipe instead of copper :)

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  • Andrew

    If I'm not mistaken, a 1″ x 10' PVC pipe is about $1. Certainly easier to cut than copper!

  • Mike Lieberman

    Yes, but there is the concern for the potentials of leaching into the water.

  • http://www.thoughtsofthatmom.com/ Amy @ Thoughts of THAT Mom

    Awesome idea! Thanks! I love the self-watering containers! I’ve done square foot gardening for years up in Michigan, but here in Vegas needed something different. I was afraid the plants would die from the heat combined with watering restrictions that keep us from watering during the day. I think the self-watering containers are what I’ve been looking for! I can move them out to get sun early in the day & pull them back under the covered porch before the heat of day hits…and don’t have to worry about them not getting the water they need during the day.

    I love your blog! Thanks!

  • Mark

    In London it’s dead easy to find PVC pipe for free from skips. I’ve got more than I know what to do with. I see your comment about leaching. I’m no expert but as PVC pipe is often used to carry drinking water I’m guessing it’s not too serious a problem.

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    I hear ya, but just because it’s used doesn’t mean it’s not too serious of a problem. Look at GMOs, fluoride in water and a million other things…

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  • Anonymous

    Hi Mike, Hi Everyone,

    for the lower section i’ve used hemp and sissal rope as a wick – provides a nice capillary riser for the water. It keeps the lower water cleaner as only the rope and not soil is in contact with the reservoir.

    i’m not sure of the advantages of no pipe. a vertical pipe with a float riser made from a bottle cork has the advantage to allow more water to be in the reservoir and allow top fill rather than a (for me) complicated side fill.

    the system also works with chilli – hot like Mike ;-) oooops ! :-)

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    Hahahaha. Thanks ;-)

    Like the hemp and rope idea.

    The advantage of no pipe is that it’s cheaper and don’t have to worry about chemical leaching.

  • Kace

    Have you had issues with using copper piping? In my experience copper can be toxic for plants! I think PVC may Have PBAs as well, so i am curious if there is truly a foodsafe piping alternative? would Bamboo work?

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    That’s why I no longer use any pipe.

  • http://profile.yahoo.com/74YGJ2TMILSYH4Z2OZPI5EILRQ AILI

    Not mold, but algae. Mold is a fungus, but algae is just a plant. You can lift the plant bucket out & rinse/wipe out the water bucket every now & then. If you paint your bucket so no light gets though the walls, the algae will either stop or slow down. It thrives in sunlight. It doesn’t harm anything though.

  • http://profile.yahoo.com/74YGJ2TMILSYH4Z2OZPI5EILRQ AILI

    Bamboo is not hollow all the way through – it is segmented. I suppose you can drill it out though. Vinyl tubing you can get at a pet store (aquarium section) would work great, but I’m not sure it comes in large enough diameter for a neat fill, may have to use a funnel with it.

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    Thanks for the clarification.

  • http://profiles.google.com/mrs.brittsy Brittney Youmans

     Bamboo creates a haven for earwigs, which will devastate your seedling crops.  :/

  • MrJSaul

    HomeDepot and Lowes sells PEX piping which is non-PVC piping used for running potable water to/from the fridge and other water sources.  $5 for 10/ft.  It is plastic and I’m researching effects of using plastics (if anyone has good sources for info relating to use of plastics in gardening let me know!)

  • {ashecca}

    What about using cut pieces of garden hose for the pipe?

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    Can do that, but make sure that it’s safe garden hose.

  • http://www.facebook.com/people/Stover-HearthandPatio/100000399868641 Stover HearthandPatio

    you answered your own question with your first sentence….

  • Sylk28 from Switzerland

    Earwigs are good for your crops! They are eating others bugs, not your plant.

  • Yevondadee

    I still don’t know what I am looking at here.
    Do you put a hose into the hole, or what?..
    And why?

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    It’s container for your garden. There are a few ways you can water it.

  • http://www.facebook.com/profile.php?id=1669596101 Keara Quiroz

    i use this. but instead i use 2 , 55 gallon food grade barrels and one 5 gallon bucket in lue of .Patio plants or indoor plants I use recycled milk jugs in lue of the 5 gallon buckets..the basic concept still works for each application

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    I likes it.

  • http://www.facebook.com/profile.php?id=649191619 Jana Gale Connell

    Such as? How do you water it with no pipe coming up through it? Don’t leave me hanging here please…

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    From the top and the water will drain or lift out the planting container and pour water directly in reservoir.

  • Johan du Plooy

    I have to agree with Jana. What’s the point here? You still need a hose to get the water into the bottom reservoir. You say a watering can’ but you’ll have to turn the whole thing on it’s side, surely?

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    The reservoir on the bottom holds the water, so you have to water them less frequently. I’ve gone 3 weeks without watering them.

  • oldngrumpy

    Just finished a project very similar to this. I used rectangular storage bins. My only reservation is that they are black, which may over heat the roots. It’s a trial, so I’m not vesting all my crop in it.

    I used a plant basket from the pond supply section of my local big box lumber store as the wicking point and just attached it to the planter bottom with self tapping screws. I drilled overflow holes on each end of the reservoir bin at the same height as the top of the plant basket and made 4 legs from a closet pole to support the planter inside the reservoir. I did use a pipe filler that I placed in the corner of the planter in an appropriately sized hole. Angling the pipe bottom keeps it from blocking the water flow. I saturated the soil when planting, but watering after that is done from this pipe until I see water emerge from the overflow holes.

    If you don’t leave some air gap between the planter bottom and the water level your crop’s roots will seek out the water through the holes in the planter and may lack nutrients that would be available from the soil. This gap is maintained by the overflow holes being slightly lower than the planter bottom’s position, as determined by the length of the legs supporting the planter.

    The success of this experiment will depend upon the ability of the soil to wick water up through the basket. It is open to the elements, but I don’t intend to water it from the top again between rains. I’m hoping for an abundance of Early Girl’s in about 45 days.

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    That sounds great. Enjoy your harvest!