Home Gardening Strawberry vertical gardening. Drainage pipe (or 6 PVC pipe with 2.5 drilled holes, spaced around pipe). 1 pipe with .5 holes every 2 inserted down the center for watering. Add soil to first hole, insert strawberry plant, fill to next hole. Water down the center pipe. Mount vertically either by hanging (holes at the top and rope) or pipe strapping and existing structure.