An optimal harvesting plan is presented for Dalbergia sissoo and Eucalyptus that will ensure the sustainable management of the Sagarnath plantation in Nepal. The plan makes the SFDP financially sustainable and enables the SFDP to meet the demand for fuelwood and timber products through constant flow from the plantation. Linear programming was applied to obtain optimal harvesting levels. For D. sissoo , no cut was allowed until the age of 10 years. Without declining or even flow constraints, the volume is maximized only if stands are cut at the end of the planning period. With non-declining yield constraints, the volume is maximized again if the stands are cut at the end of the planning period. The difference between total harvests with and without constraints is only 9.45%. For Eucalyptus , stands older than five years are allowed to be cut. The harvest without non-declining and even flow constraints is maximized if eight-years and older stands are cut in the firstyear so that the regenerated stands (nine-year-old stands) can be cut in the last year. With non-declining yield constraints, allowable cut every year from the first to the ninth is the same. The difference between total harvests with and without non-declining yield constraints is 13.32%. The difference between total harvests with and without even flow constraints is 9.01%.