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How to Make a Single-Bucket Self-Water Regulated Vegatable Planter

How to Make a Single-Bucket Self-Water Regulated Vegatable Planter
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by Jake Robinson

I originally made my own two-bucket self watering, self feeding vegetable planter. They work quiet well, however, after some thought I have designed a single bucket system without sacrificing the watering feature that a two bucket system offers.

In a two bucket system the bottom bucket is where the water is stored for the plant. The top bucket contains the soil and allows the water to wick up through holes that are drilled in the top bucket's bottom. A larger hole allows a 'wicking cup' to sit the bottom of the 'top' bucket so some of the soil rests below the water line which allows the water to wick up into the upper bucket.

I have redesigned this system to allow the use of a single bucket which then saves time, labor and material. You eliminate the need for an extra bucket, or better yet you get two planters for the 'price' of one!

Here are some of the advantages of this type of system.

1. Use less water versus the same vegetable planted straight into the ground (about 70% less) One reason is the bucket has a lid and only a small opening where the stem is keeping the water from evaporating as fast as open ground... plus you just put the exact amount of water until is starts to flow out the overflow hole - then you stop watering

2. Use less fertilizer. Because the fertilizer strip lays at the top of the bucket, the lid prevents rain water from leaching it out. When adding fertilizer to a vegetable planted straight into the ground, the fertilizer will leach out very quickly causing you to use more, pollute water runoff as well

3. NO WEEDING!!! Because the lid is on it keeps weeds from growing. This saves time a
nd labor

4. You may have to still worry about bugs - but not those who burrow and less likely the crawling type bugs as it is harder for them to get to your plants

5. Produces more fruit. It has been proven that a properly designed planter will produce more fruit as it gets just the amount of water and fertilizer it needs and will last all growing season

6. Saves space - these planters can be housed almost anywhere, in your yard, driveway, back deck - anywhere they can get sun. I planted my garden very early before spring really had come. I moved them into my garage when the weather forecast called for close to or freezing temps. Then I wheeled them out with a dolly into the sun for the day. This way I was getting ripened veggies way before my neighbor's garden

7. Extended production. You can bring your plants in when first frost is forecast then put them back out for as long as the weather holds. Giving you extra bounty into the fall. It is not unheard of for some plants to be brought indoors once the weather gets too cool and continue to produce indoor using a grow light.

8. Can be reused... at the end of the growing season you can remove the plants... and next year just lay a new strip of fertilizer and plant again.

9. Easy to maintain. I water my plants in the morning and in the evening... it takes just a minute
10. When it rains your plant will not get over watered and hey, plants love rain. I usually shower my plants down after sundown each night as well

 
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Step 1Materials & Tools Needed

Materials & Tools Needed
Here are the materials needed:

A plastic bucket & lid ( this item is a square bucket)
Plastic PVC pipe - approximately 36" long at least 2" diameter to 3" dia
Plastic PVC pipe - 1" dia
Potting Mix - very important, do not use dirt, soil, potting soil - use only potting mix - if you google 'Earthbox' you will see the inventor has determined several important aspects for proper growth of plants.....
Fertilizer (I prefer organic)
Lime in pellet form (if planting certain vegetables)

Tools needed:Drill w/ a 1/4 inch bit
Utility knife
Hand Saw or Hack Saw or Reciprocating Saw
Magic Marker
Tape Measure

Ideas on where to get Buckets: I got these nice square buckets from a local barbecue restaurant... I believe many barbecue joints use a similar vendor. They get many of their food and ingredients in these buckets - baked beans, margarine, slaw, sauce etc. The location I get these from has 30-60 at any given time as they don't throw them away and generally use them but will give them to you if you ask. Make sure you get the lids to go with them.

PVC: you should be able to go to a construction site and ask to pick up scraps - I got all my scrap that way. You may also find short pieces at a big hardware store like Home Depot or Lowe's as they will cut PVC for people and have short scraps left over and generally will not charge you for it.

Let's get started
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24 comments
Apr 10, 2010. 12:40 AMMr.Nelson says:
I like your design.  I wonder if you might assist me with a few questions?

Do you ever have a problem with your buried pvc irrigation pipes becoming clogged with soil? ( It would significantly add to the cost, but would filling your pipes with LECA stone be a benefit?)

You use potting soil, and - from what little I have handled it - it seems to have properties that would assist in distributing the water - vertically -to the plants roots.  If someone were to use a mixture of top soil and compost, do you think the water would properly reach the root system?
Apr 12, 2012. 10:25 AMstopherbailey says:
Just a thought but instead of window screens you could recycle the wifes( or female freinds/family members) nylon tights or stockings stretched over your PVC to stop soil drifting below into the water.
I have used Nylon tights before as wicks for self watering house plants.
Apr 13, 2012. 6:08 AMstopherbailey says:
I think the American name for tights is Pantyhose ( :
Apr 11, 2010. 9:14 PMMr.Nelson says:
I had the same suspicions about using regular soil.  The increased compaction and less 'wick like' properties might clog the pipes and decrease water distribution.  I'm gong to give it a try - though - and see what happens.

I'm going to add the LECA stone inside the PVC to reduce the soils penetration.  I like what you said about a layer, but if it is above your drain hole or reduces the waters contact with the soil - I'm afraid it might impede the travel of the water to the plant roots.

I didn't think about relistate problems for the root growth.  I'll definitely go one per bucket now.

Thanks
Apr 11, 2012. 12:16 PMariviera says:
Wouldn't a lime:earth ratio of 1:4 mean the resulting volume would be 20% lime, not 25%?
1 unit of lime + 4 units of earth = 5 units total
1 unit lime / 5 units total = 20% lime by volume.
May 7, 2011. 8:59 PMjoegolo says:
Just wondering if this could be done with plastic water bottles instead of PVC pipes. My wife is concerned with the plastic bottle having stuff leech into the soil. Are there worries like that with the PVC as well? Thanks!
Apr 30, 2011. 11:22 AMChakazuluu says:
Great instructable I am going to start this week end...
May 22, 2010. 5:44 PMloley says:
I just made these and so far so good- I do have one question...  You said you water your plants twice a day!! I thought that having the "water table" would eliminate the need for everyday watering. I have to go out of town to town from time to time so I am worried about the watering.
Apr 11, 2010. 9:33 AMRoger408 says:
I tried a couple of DIY versions last season.  They worked, but I like yours much better!  Yours is easier & cheaper to build also.

One feature of the commercial Earthbox is an overflow drain in the side of the box, just above the water storage area.  Did you have any problems with someone getting over-enthusiastic with watering?  I used a 3 inch piece of soft vinyl tubing, which fits snugly in a half inch hole drilled in the bucket.
Apr 6, 2010. 5:42 AMrmyontz says:
Love this idea, as I can't stand to weed. YUK! But what I wondered is if some wiffle balls would work in place of the pvc pieces at the bottom of the bucket? I have several from a old halloween project, was thinking that all I need is something plastic with perforations. Think that would work?
Mar 28, 2010. 11:37 AMtrying2learn says:
This is an absolutely excellent idea.  I love it because it is something I, with my extremely limited technical skills, can actually do.

Now, if only I knew how to prune tomato plants! 

Thanks.
Aug 30, 2009. 5:23 AMycc2106 says:
Looks great, a side view graphic/scheme would be, I think, most explicit... would it be possible?

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