THANKS SO MUCH FOR FOR YOUR QUESTION PLEASE MAKE SURE YOU SUBCRIBE TO MY CHANNEL. I WILL EXPLAIN MORE IN MY NEXT VIDEOS 1) FOR STABILTY 2) AGAINTS DRYNESS EVEN IN THE MIDDLE OF DRY SEASON 3) ENOUGH SPACE FOR ORGANIC MANURE 4) HELP TO PROTECT THE PLANT FOR INSECT AND WORM ETC