For years I've been struggling with building a trellis for my garden. Previously I built one out of wood, but it was too large and putting it up and taking it down was a chore. Also, it was not moveable to another location. I decided that I would try PVC and it worked out great.
The below trellis I built is to sit on the north side of a 4X8 bed. This year it will be used for pole beans, but it could easily be used for anything else that needs to climb (peas, cucumbers, squash). It is quite easy to build a trellis for a 4' raised bed.
- 15' of 3/4" PVC pipe (you may need to buy 20' because they seem to only come in 10' lengths)
- 2 – 90 degree elbows
- 2 galvanize 3/4" brackets (with screws)
- Screw driver or drill with screw driver attachment
Steps to Build
1. Purchase two 10' pieces of 3/4" PVC pipe. For convenience have them cut each one in half so you have four 5' pieces.
2. After you determine where you want your trellis, drive two of the 5' pieces into the ground on the inside of the 4' raised bed. You want the top of the pipes level.
3. For extra strength, use a galvanized 3/4" bracket to hold the pipe to the wood sides.
4. Take the 90 degree elbows and put them on the top of the pipes.
5. Now take another 5' length of pipe and put it into one of the elbows. Lay the pipe over the top of the other elbow. There should be a mark on the elbow that shows how far the pipe will insert into it. Mark the PVC pipe just before this line.
6. Remove the PVC from the elbow and cut the PVC on the line with the hacksaw.
7. Insert the pipe into both elbows.
8. Pat yourself on the back, you are done.
The only thing left to do will be to put material on the trellis to allow the plants to climb on it. You could simply use garden twine and run it from right to left up the poles. My method is to but bird netting to size and use electrical ties to hold it in place along the top and sides. It works out great.