v3.7.0.1
Document and Entity Information - shares
9 Months Ended
Jul. 01, 2017
Aug. 04, 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 Jul. 01, 2017  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Trading Symbol SMG  
Entity Common Stock, Shares Outstanding   58,411,264