The materials you need will include:
a sewing machine
seeds or plants
Step 1: Preparing the Bags
The dimensions you choose for your planter bag will determine how large you will cut the pieces in this step. I first cut open the side of the bag, then I cut off the bottom, and finally I shortened the vertical height of the bag.
I also cut down the height of the bag after I cut out the pieces and saw how large the diameter of the planter bag was going to be.
Step 2: Sewing the Top Structure
Sew the two side seams and then hold up the bag to see if the diameter of the top is the size you desire. If its too large, slice off one of the seams, cut off however much you need and resew the side seam.
I just sewed the seams on my sewing machine with a #14 needle and polyester thread.
Step 3: Fitting and Sewing on the Bottom Panel
I first lined up one long side of a rectangle of feed bag from the discarded portion when I trimmed the feed bag down to the preferred height. Then I sewed the second and third sides.
I pieced the bottom out of two rectangles of feed bag discards so that there is a slit between the sides to allow the plant to have better drainage.
Step 4: Finishing the Planter Bag
Time to plant your bag! These bags can grow a wide variety of different plantings but they are particularly helpful to grows where you are going to a root that gets harvested like sweet potatoes.