Weed control
With the front garden under the gate using heavy duty weed sheeting would be a good idea cover with a high quality bark or wood chip. Before laying the sheeting down weed the area just to level it then lay the sheeting pegging it down with some straining wire then cover with bark.
To plant in this area simply cut the crosses in the sheeting fold back the sheeting and plant you plant, finally fold back the sheeting around the plant and pull back the mulch or bark.
Here is a link to the Landscape sheeting