Print Story On the making of a self-watering planter out of a plastic tub
Diary
By lm (Mon Jun 04, 2012 at 10:10:36 PM EST) (all tags)
The title says it all. This is a DIY project to see if my Black Thumb Of Death can be converted to something closer to one of fifty shades of green.


If I were to have a nickname based on my gardening skills it would be something like B-TOD, Black Thumb Of Death. The stories of my attempts at plant husbandry are legion and almost end with the same words, ``and then the plant died.'' The few that do not end that way end with memorable words spoken by friends of mine in sheer awe of the magnitude of my B-TOD-ness, ``oh, Lee, what nice dead plants you have hanging up all over your house!'' All I have to do is to gaze in the general direction of the nursery at the local gardening store and I can feel a great disturbance in the force as if millions of souls were about to perish as one.

For this reason, living in an apartment with no place for a garden for the last four years has suited me well. And, yet, every now and then I would feel the siren call of vegetation taunting me to try one more time. However weak in will I grew at the beckoning of the sirens of the vegetable kingdom, I had the escape hatch of my urban apartment lifestyle. I simply have no room for a garden.

And then I became aware of a plans for a nifty little DIY project circulating on the Intarwebs. Banking on the popularity of a certain fifty dollar plastic box, many sites had put up plans for DIY self watering planters made from plastic tubs. I figured that living in a 7th floor apartment with a balcony facing east, such a thing may make limited gardening feasible. Moreover, the self-watering part of it might manage to reduce my B-TOD tendencies.

An thus it was that my project began. I already had a number of large plastic tubs with lids, so I picked one out and wandered around the local hardware store to pick up a few things that I did not to finish out the plans. My purchases for the project came in under ten bucks, namely one five foot piece of pipe and some plastic baskets.

Bill of Materials


  • 1 30 gallon tub (any size will do)
  • 3 plastic baskets from the hardware store (see picture for approximate size, the size you need will vary according to the size of the tub being used
  • a five foot section of 1 and 3/4 inch pipe
  • 1 old, well used, and hole ridden pair of cotton socks (optional)
  • a few bits of an old cotton sheet (or netting, perhaps optional)
  • some twine (perhaps optional)
  • cloth tape (or caulk)

I also found the following tools helpful in the project


  • hack saw for cutting the pipe into sections
  • drill and 3/4 inch bit for putting holes into the pipe
  • utility knife for cutting of plastic
  • magic marker for marking out where to cut
  • scissors for cutting the cloth
  • measuring tape

If you've not followed the links above, the basic plan is to put a second floor in a tub to separate it into two spaces, one for dirt and one for water. The baskets serve as supports for this second floor so my first step one was to lay out the baskets inside the tub to see if they fit. When I did this, I discovered that the baskets, side to side, were too wide. So I cut one in half and used twine to tie it together to make it about half its original width. This was then lined with one part of the old sheet, my intent being to have something to keep the wet dirt inside the basket. Then I cut a hole in the bottom of second basket for the fill pipe.

Planter_01 Planter_02

Planter_03 Planter_05

With the supports in place, the next step was to cut a piece of plastic out of the lid of the tub to use for a floor for the dirt. To do this, I measured the width and length of the tub at the height of the baskets, drew a rough rectangle of that size on the lid of the tub and then cut it out with the utility knife. Then I measured where the middle basket would go and the hole for the drain pipe and cut corresponding holes in the new floor.

Planter_04 Planter_06

Then it was time to cut the pipe. One piece was to be used for a fill pipe and two additional pieces were to be used to aerate the dirt chamber. For the fill pipe simply measured the height of the tub, added a few inches, cut the pipe and then cut a nock out of one end so that water would flow out better. As my intention was to use the remaining pipe for aeration, I drilled full of holes roughly two to three inches apart all along its length before measuring the width of the tub and cutting the hole filled pipe to fit.

Planter_07 Planter_08
insert tub with pipes

Lastly, I took the aeration pipes out, cut the toes off of the old cotton socks, slid the socks over the pipes and put them back in. The purpose of this was to minimize the amount of dirt that would fall into the aeration pipe. I also took the utility knife and made a small hole in the side of the tub just below the floor for the dirt so that when filling the water reservoir, it will start to overflow through that hole before it reaches the top of the water chamber. This will help prevent overfilling. Then I sealed the edges of the floor with cloth tape, filled the tub with dirt and planted tomatoes. Altogether, my planter holds about four cubic feet of dirt and sits three tomato plants comfortably.

Planter_09 Planter_10

So far as I can tell, the water chamber holds somewhere between 6 and 10 gallons of water. I had intended to count but I lost track of the number of trips I made back and forth from the sink to the porch.

Once I was finished, I realized why so many people might spring the fifty bucks for a pre-built planter. Mine was kind of ugly. So the next project for the drawing board will be to create an outer shell out of either wood or fabric to make it more aesthetically appealing. The more I think about it, I'm tempted to try a wire frame against which I call pull fabric taught. But I may go with some wood to give the appearance that my planter is made of wood.

And, lastly, I think that I will mount some wheels on the planter to make it easier to move around. With my balcony facing almost due east, I suspect that my plants will all grow crooked if I never rotate the planter. Putting it on wheels will make such rotation a piece of cake.

Now all I have to do is to sit back and see how long it takes my tomato plants to die off.

< 6 years on | Good mooning >
On the making of a self-watering planter out of a plastic tub | 11 comments (11 topical, 0 hidden) | Trackback
I think it looks awesome. by garlic (2.00 / 0) #1 Mon Jun 04, 2012 at 11:03:47 PM EST
if your fabric was less raggedly cut, it'd be perfectly fine.

Having a south facing window balcony, and no patience to water plants on a daily basis in standard pots, I look forward to your reports on the longevity of your plants.

My prediction -- it works fine, but the self watering means that eventually I would forget I was supposed to fill the container, and then poof, dried up twigs in a dirt box.




I've also thought about painting the tub by lm (2.00 / 0) #2 Tue Jun 05, 2012 at 05:35:32 AM EST
As for the dried up sticks, that's the rest of the story.

When my paternal grandmother was alive, she was a large fan of plants. She moved in with my dad for the last years of her life. She filled his house with plants. They were hanging from the ceiling, in window boxes, on top of the television, in free standing planters, on the mantle of the fireplace. Every imaginable place to fit a plant was filled with a plant.

Just before my grandma died, my sister also moved in with my dad. When grandma was gone, she took over the role of watering the plants.

Just before my sister went off to college in the fall of '88, I moved in with my dad. I didn't even notice the plants. Some the following spring, some friends of mine came over to the house. One stepped inside, looked around, and promptly said, ``Oh, Lee, what nice dead plants you have all over.''


There is no more degenerate kind of state than that in which the richest are supposed to be the best.
Cicero, The Republic
[ Parent ]

Hmm by anonimouse (4.00 / 2) #3 Tue Jun 05, 2012 at 05:57:00 AM EST
It seems a lot of trouble to grow three tomato plants.


Girls come and go but a mortgage is for 25 years -- JtL


You might have a different definitions of trouble by lm (2.00 / 0) #4 Tue Jun 05, 2012 at 08:04:41 AM EST
It took maybe an hour to put together. If you want to count the amount of time I spent in the hardware store, then add fifteen minutes to that hour.

But if you're the sort that doesn't like playing with electric drills and with hacksaws, then I can see how you might think it a lot of trouble.

And, presuming the tomato plants fruit, I think it fair to say that fresh tomatoes are well worth considerable trouble.


There is no more degenerate kind of state than that in which the richest are supposed to be the best.
Cicero, The Republic
[ Parent ]

There's only two things that money can't buy... by ana (4.00 / 2) #6 Tue Jun 05, 2012 at 10:08:55 AM EST
and that's true love and home-grown tomatoes. 

I now know what the noise that is usually spelled "lolwhut" sounds like. --Kellnerin
[ Parent ]

three plants are good. by dev trash (2.00 / 0) #10 Tue Jun 05, 2012 at 06:31:45 PM EST
I wouldn't have put all three in the same container but yeah.

--
I DON'T CARE ABOUT YOUR BALLS! ->clock
[ Parent ]

Those tomatoes look kind of like by wiredog (2.00 / 0) #5 Tue Jun 05, 2012 at 08:30:14 AM EST
that whacky tobaccy stuff. Hope you don't get raided.

Earth First!
(We can strip mine the rest later.)



I didn't ask many questions by lm (2.00 / 0) #7 Tue Jun 05, 2012 at 11:00:52 AM EST
An acquaintance of mine gifted the tomato plants to me. They may be of questionable provenance.

Given that federal workers can look out of their office windows at my balcony, I guess that I'm living dangerously.


There is no more degenerate kind of state than that in which the richest are supposed to be the best.
Cicero, The Republic
[ Parent ]

But they all work for NOAA by wiredog (2.00 / 0) #8 Tue Jun 05, 2012 at 01:02:45 PM EST
Which is comprised mostly of hippies.

Earth First!
(We can strip mine the rest later.)

[ Parent ]

Hey, I know some people that work there by lm (4.00 / 1) #9 Tue Jun 05, 2012 at 04:37:30 PM EST
They resemble that comment.

There is no more degenerate kind of state than that in which the richest are supposed to be the best.
Cicero, The Republic
[ Parent ]

I used to work there. by wiredog (2.00 / 0) #11 Wed Jun 06, 2012 at 07:37:31 AM EST
Got a friend who still does.

Earth First!
(We can strip mine the rest later.)

[ Parent ]

On the making of a self-watering planter out of a plastic tub | 11 comments (11 topical, 0 hidden) | Trackback