I read a gardening hack idea that I liked. Plant a seed in an ice cream cone with some dirt and then when it has sprouted and ready to go out in the garden just plant the cone and it will easily degrade. Sounded like a good idea, but WRONG. As water is added to the cone it starts degrading way before the seed sprouts. It makes a really big mess. There may be some seeds thT will work due to not needing much water, but not most.