Depends on what was in your least agreement. Most will require that you pay the remainder of the leasing period or at least 1/3 of the remainder (however, many nice people will let you off the hook with 30 days notice). You are responsible for the property during the leasing period and are require to return it in the condition it was in when the lease was signed, therefore the washer/dryer is your responsible. IMHO, the landscaping bark isn?t your responsible due to normal wear and tear (also depends on the wordings on your lease).
Own up to your responsible and live out the rest of the lease, replace the W/D and wood barks as requested by your landlord. Because, it is much cheaper than have to pay the remainder of the lease, pay for a new set of W/D, carpet clean/replacement, and paint/repair (if your landlord decide to be an ass).
[edit]
And my lease agreement does not mention the bark and the washer and dryer.
The floorings, cabinets, house fixtures, windows, doors, and the entire house normally isn?t listed in the agreement, but it doesn?t mean that you don?t have to pay for it if it is damage or given away.
Good luck finding another place to stay if you want to use your current landlord as a reference.