Apparatus includes a lawn debris collection assembly having a plenum assemblyconfigured tobe positioned in close proximate relationship with a lawn surface having lawndebris lodgedbetween lawn blades of a lawn. The plenum assembly is movable along the lawnsurface. Theplenum assembly is also configured to house a positive air-pressure stream insuch a way thatthe positive air-pressure stream is directed toward the lawn debris, and thepositive air-pressurestream, in use, dislodges the lawn debris from between the lawn blades. Theplenumassembly is also configured to house a negative air-pressure airstream in sucha way that thenegative air-pressure airstream, in use, flows from the plenum assembly to adebris-collectionbag. The negative air-pressure airstream, in use, urges the lawn debris tomove from theplenum assembly to the debris-collection bag.
