my mom had a 12 foot tree this year in her entryway... if you catch it early enough in the season you can find the larger bags... hers said for 15 foot tree this year... but make sure you put it on before you set the tree up... and leave it around the base... man looks like you had quite a mess to clean up there... i don't envy you at all... that's why i'll stick with my 6 foot boxed tree