SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Jun. 28, 2025
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations The Scotts Miracle-Gro Company (“Scotts Miracle-Gro”) and its subsidiaries (collectively, with Scotts Miracle-Gro, the “Company”) are engaged in the manufacturing, marketing and sale of products for lawn and garden care and indoor and hydroponic gardening. The Company’s products are sold in North America, Europe and Asia. The Company’s North America consumer lawn and garden business is highly seasonal, with more than 75% of its annual net sales occurring in the second and third fiscal quarters.
Organization and Basis of Presentation	Organization and Basis of Presentation The Company’s unaudited condensed consolidated financial statements for the three and nine months ended June 28, 2025 and June 29, 2024 are presented in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The condensed consolidated financial statements include the accounts of Scotts Miracle-Gro and its consolidated subsidiaries. All intercompany transactions and accounts have been eliminated in consolidation. The Company consolidates all majority-owned subsidiaries and variable interest entities where the Company has been determined to be the primary beneficiary. The results of businesses acquired or disposed of are included in the condensed consolidated financial statements from the date of each acquisition or up to the date of disposal, respectively. In the opinion of management, interim results reflect all normal and recurring adjustments and are not necessarily indicative of results for a full year. On March 14, 2025, the Company sold all of the issued and outstanding shares of capital stock of its formerly wholly-owned subsidiary The Hawthorne Collective, Inc. (“THC”) to Bad Dog Holdings LLC (“BDH”) in exchange for a promissory note with a principal amount of $39.0. BDH is a newly formed legal entity owned and controlled by a strategic partner of the Company that is intended to hold and manage the investments held by THC. THC was created during fiscal 2021 as a vehicle to invest in areas of the cannabis industry that are not pursued by the Company’s Hawthorne segment. At the time of the sale, THC held non-voting exchangeable shares of Fluent Corp. (formerly Cansortium Inc.) (“Fluent”) (CSE: FNT.U) (OTCQB: CNTMF), a vertically-integrated, multi-state cannabis company, and other minority non-equity investments with a total book value of $39.0. BDH granted the Company a call option that enables the Company to reacquire all of the issued and outstanding shares of capital stock of THC in exchange for canceling the principal amount of the promissory note and making an additional payment to BDH equal to 5% of any appreciation in the fair value of THC. The Company may exercise the call option in its sole and absolute discretion, until the earlier of (i) March 14, 2035 and (ii) the date of the consummation of a merger, change in control or consolidation of BDH or a sale, lease, transfer, exclusive license or other disposition of all or substantially all of the assets of BDH. The Company also granted BDH a put option providing BDH with the right to cause the Company to reacquire all the issued and outstanding shares of capital stock of THC in exchange for canceling the principal amount of the promissory note. The Company has determined that it has a variable interest in BDH and that BDH is a variable interest entity. Additionally, based on its assessment of the characteristics of its variable interest in BDH, including the involvement of its de facto agents, the Company has determined it is the primary beneficiary of BDH and, as a result, is required to consolidate BDH in its condensed consolidated financial statements. As of June 28, 2025, BDH had assets of $8.8 and $27.5 recorded in the “Investment in unconsolidated affiliates” and “Other assets” lines in the Condensed Consolidated Balance Sheets, respectively, and total liabilities of $39.0 associated with the promissory note due to the Company, which is eliminated in consolidation. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been omitted or condensed pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, this Quarterly Report on Form 10-Q for the fiscal quarter ended June 28, 2025 (this “Form 10-Q”) should be read in conjunction with Scotts Miracle-Gro’s Annual Report on Form 10-K for the fiscal year ended September 30, 2024 (the “2024 Annual Report”), which includes a complete set of footnote disclosures, including the Company’s significant accounting policies. The Company’s Condensed Consolidated Balance Sheet at September 30, 2024 has been derived from the Company’s audited Consolidated Balance Sheet at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements.
Supplier Finance Program	Supplier Finance Program The Company has an agreement to provide a supplier finance program which facilitates participating suppliers’ ability to finance payment obligations of the Company with a designated third-party financial institution. Participating suppliers may, at their sole discretion, elect to finance payment obligations of the Company prior to their scheduled due dates at a discounted price to the participating financial institution. The Company’s obligations to its suppliers, including amounts due and scheduled payment dates, are not impacted by suppliers’ decisions to finance amounts under this arrangement. The payment terms that the Company negotiates with its suppliers are consistent, regardless of whether a supplier participates in the program. The Company’s current payment terms with a majority of its suppliers generally range from 30 to 60 days, which the Company deems to be commercially reasonable.
Recently Adopted & Issued Accounting Pronouncements	In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This ASU requires enhanced disclosures about significant segment expenses regularly provided to the chief operating decision maker that are included within each reported measure of segment profit or loss, and also requires all annual disclosures currently required by Topic 280 to be included in interim periods. ASU No. 2023-07 is to be applied retrospectively for all periods presented in the financial statements and is effective for the Company’s fiscal year beginning October 1, 2024, and for interim periods within the Company’s fiscal year beginning October 1, 2025, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this guidance will have on the Company’s disclosures. In December 2023, the FASB issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” This ASU primarily requires enhanced disclosures and disaggregation of income tax information by jurisdiction in the annual income tax reconciliation and quantitative and qualitative disclosures regarding income taxes paid. ASU No. 2023-09 is to be applied prospectively, with the option to apply the standard retrospectively, effective for fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact that the adoption of this guidance will have on the Company’s disclosures. In November 2024, the FASB issued ASU No. 2024-03, “Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” This ASU requires disaggregated disclosures on an annual and interim basis, in the notes to the financial statements, of certain categories of expenses that are included in expense line items on the face of the statement of operations. ASU No. 2024-03 is to be applied prospectively, with the option to apply the standard retrospectively, effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact that the adoption of this guidance will have on the Company’s disclosures.