For the last couple of seasons I have been experimenting with the Kiddie Pool Gardening System (KPGS) invented by Larry Hall (Check out his YouTube channel) The basics of the system are that you use fabric grow bags placed in plastic pools or containers, with a special potting mix, keeping about an inch of water in them at all times, I will cover the KPGS in another post.
The system works brilliantly Check out this corn! until it comes to installing plant cages and trellises. Since there is not any ground beneath the bags, there is nowhere to anchor any other structures. The soil volume in the bags is not deep enough to hold cages and stakes upright once the plants get heavy with fruit. Last December I had to prop one of my tomato cages up with an old level.
After searching the web high and low I realized that I was going to have to come up with my own system. I will give credit to one member of the Rain Gutter Grow System Facebook page . He came up with the idea of placing posts in buckets of concrete. Using his idea I came up with the rest.
What you will need:
2 - 5 gallon buckets
2 - 5 gallon bucket lids
2 - 7 foot long 1 1/4 inch diameter pieces of schedule 40 or 80 PVC pipe **See note at the end
1 - 48 inch long piece of 1 1/4 inch diameter pieces of schedule 40 or 80 PVC pipe
6 - 18 inch long pieces of 1 1/4 inch diameter pieces of schedule 40 or 80 PVC pipe
3 - 50lb bags of fast setting cement
6 - 1 1/4 inch diameter PVC end caps
2 - 1 1/4 inch 5 way PVC Canopy/Furniture connectors. Buy Here
Water
Hammer or Rubber Mallet
Drill with a 1 1/2 inch hole saw
Place one length of 7' PVC pipe, centered, in each of the buckets. Fill with concrete following the label mixing directions. Make sure the uprights are level from all sides and allow to set overnight. Izzy aka Isabelle helped me to level it with her nose! She is a good helper doggie.
Move the buckets to their final location for assembly. Each one holds 75 lbs of cement. You will need some help.
Connect one end of the 48 inch PVC section to each of the 2-5 way connectors and gently test fit them on your uprights between your buckets. You may need to adjust the placement of your buckets to get the spacing correct. Once your spacing is correct remove the cross piece and 5 way connectors. Drill out the center of each bucket lid with the 1 1/2 inch hole saw. Slide your drilled lids over the uprights and secure them on the buckets and replace the cross assembly on the uprights.
Add the 6 - 18 inch sections of PVC to the 5 way connectors tapping them gently into place with a hammer if needed. Add the caps to the ends of these sections. The caps are necessary because bees and wasps love to nest in PVC pipe. You could also simply tape the ends with duct tape but it would not be as pretty.
Viola you are done!
**Note: When using Schedule 40 PVC you may want to fill the upright PVC pipes with cement to add additional stability. At 7 feet tall they are a bit wobbly. Using Schedule 80 would fix this but adding the cement is an easy and inexpensive work around. Also note that PVC can break down when exposed to the sun. Painting the pipe will increase the life expectancy of the system.
Now you can secure your cages to the center posts and also secure your stakes to the cross members above. You could also hang trellis netting between the posts or fencing or cattle panels. The options are endless.
You can alter this design to fit any space or configuration that you would like. The uprights and arms can be any reasonable length.
The total cost of this build was approximately $60 but it will last for years.
Please let me know if you found this helpful and share your pictures if you build one!