Finish your smoothie, give it a rinse and ask an adult to help you cut the top off.
Decorate the carton with paint, crayons, stickers, gems or whatever else you fancy.
Fill the carton about three quarters full with soil. Then push your cutting a few centimetres into the soil so it stands upright.
Give it a little bit of water and put it in a sunny spot like a windowsill. Then water it regularly and watch it grow.
Autumn is the chilly opposite of spring, so get your sweaters on standby and have a go at some of these hand-picked activities.