v3.6.0.2
Document and Entity Information - shares
3 Months Ended
Dec. 31, 2016
Feb. 03, 2017
Document And Entity Information [Abstract]    
Entity Registrant Name SCOTTS MIRACLE-GRO CO  
Entity Central Index Key 0000825542  
Current Fiscal Year End Date --09-30  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Dec. 31, 2016  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Trading Symbol SMG  
Entity Common Stock, Shares Outstanding   59,842,187