Luffa Sponge seeds for the kitchen garden that intends to actually produce luffa sponge this year. The Luffa Sponge is the only vegetable that doubles as a bathroom product, which is either practical or confusing depending on your household. Luffa Sponge is a tropical vine that produces edible fruits when young and natural kitchen sponges when mature. Each packet is hermetically vacuum-sealed -- removing the oxygen that causes standard paper seed packets to lose germination viability within approximately one year. State law requires a 3-year viability label on sealed packaging. NASA research on hermetic seed storage indicates viability of up to 10 years under proper conditions. Every packet is non-GMO and germination-tested at independent third-party labs before it earns its Japanese woodblock print artwork.