Outside?!? No! Lol if that worked I would be in awe. Paper towel method has a 95 percent success rate with me...the other 5 is me forgetting the seed and it grew in the paper towel, got mold, died. Usually takes about 2-3 days. 1. Put in cup of water till it sinks; 2. Put into moist, not wet, paper towel; 3. Fold paper towel and put into Ziploc bag; 3. I throw mine into a cupboard I call the magic cupboard 😆🤣👍👊🤘 GL friend