In ground wicking style dogwood hedge In ground Wicking bed style dogwood hedge in Calgary. Dogwood hedge along the new patio. we took advantage of the drainage of the back patio to water the hedge by using the wicking principle All the water from the back patio runs into the drainage grate and out to the front of the house to a drainage “pit” and then filters into the ground from there. Rather than lining the bottom of the ditch we wrapped the weeping tile in filter cloth to keep the roots of the dogwoods out of the pipe. Also we didn’t line the bottom with plastic as we wanted to give the water all the chances it can have to filter into the soil. This shows the connection from the drainage grate to the wicking bed weeping tile. Piping all in and covered with drainage rock. ready for soil.. These dogwoods all lost a lot of their leaves after we planted them. I believe they got “overspray” from the city spraying for weeds as they came from an open air nursery. After a prune and some time they all came back again.