Urns for Ashes That Grow Tree of Your Choice. Eternitrees Bio Cremation Urns Help Heal Your Heart & Heal the Planet. These Memorial Urns/Burial Urns grow a Sugar Maple Tree! Biodegradeable urns that grow your tree of choice Contains an unique mix that aids in the release of beneficial plant nutrients Holds an average of one-seventh of the cremated remains TSA Compliant for air travel Heal Your Heart ~ Heal The Planet