With more and more people living in urban settings, landscaping has to fit into and work alongside urban planning, causing some unique combinations of asphalt and mulch. Growing hyonically is the future, even NASA has openly stated that they will help astronauts feel more at home in space by allowing them to grow their own food via aero and hyonics.
Consider keeping a worm composting bin if your kids love playing with worms. To find answers to your questions you may need to find message boards specialized in this issue you are curious about. Container gardening can be fun and easy with just a little planning and preparation