<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-12-18</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000737758</issuerCik>
        <issuerName>TORO CO</issuerName>
        <issuerTradingSymbol>TTC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001638979</rptOwnerCik>
            <rptOwnerName>DAHL AMY E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8111 LYNDALE AVENUE SOUTH</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BLOOMINGTON</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55420</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, International</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Performance Share Units</value>
            </securityTitle>
            <transactionDate>
                <value>2024-12-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2156</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18490.001</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20708.261</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4050.551</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>The Toro Company Retirement Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents the payout of a Performance Share Award for the Fiscal 2022 to Fiscal 2024 Performance Period under The Toro Company Amended and Restated 2010 Equity and Incentive Plan, as amended and restated, as approved by the Issuer's Compensation &amp; Human Resources Committee of its Board of Directors on December 10, 2024, and which was conditioned upon and subject to confirmation by the Issuer's Fiscal 2024 financial results that were released on December 18, 2024. The reporting person has deferred the payout of her Performance Share Award under The Toro Company Deferred Compensation Plan for Officers (the &quot;Deferred Plan&quot;), and accordingly, the reporting person's Performance Share Award is paid in performance share units under the Deferred Plan.</footnote>
        <footnote id="F2">Includes 201.938 performance share units acquired by the reporting person since the date of her last report under the dividend reinvestment feature of the Deferred Plan.</footnote>
        <footnote id="F3">Includes the following shares of common stock acquired by the reporting person since the date of her last report: 72.189 shares acquired through regular individual and issuer matching contributions to The Toro Company Retirement Plan (&quot;Retirement Plan&quot;); and 32.305 net shares acquired under the dividend reinvestment feature of the Retirement Plan less quarterly non-discretionary administrative fees.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Joanna M. Totsky, Attorney-in-Fact</signatureName>
        <signatureDate>2024-12-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0508
4
2024-12-18
0
0000737758
TORO CO
TTC
0001638979
DAHL AMY E
8111 LYNDALE AVENUE SOUTH
BLOOMINGTON
MN
55420
0
1
0
0
VP, International
0
Performance Share Units
2024-12-18
4
A
0
2156
0
A
18490.001
D
Common Stock
20708.261
D
Common Stock
4050.551
I
The Toro Company Retirement Plan
Represents the payout of a Performance Share Award for the Fiscal 2022 to Fiscal 2024 Performance Period under The Toro Company Amended and Restated 2010 Equity and Incentive Plan, as amended and restated, as approved by the Issuer's Compensation & Human Resources Committee of its Board of Directors on December 10, 2024, and which was conditioned upon and subject to confirmation by the Issuer's Fiscal 2024 financial results that were released on December 18, 2024. The reporting person has deferred the payout of her Performance Share Award under The Toro Company Deferred Compensation Plan for Officers (the "Deferred Plan"), and accordingly, the reporting person's Performance Share Award is paid in performance share units under the Deferred Plan.
Includes 201.938 performance share units acquired by the reporting person since the date of her last report under the dividend reinvestment feature of the Deferred Plan.
Includes the following shares of common stock acquired by the reporting person since the date of her last report: 72.189 shares acquired through regular individual and issuer matching contributions to The Toro Company Retirement Plan ("Retirement Plan"); and 32.305 net shares acquired under the dividend reinvestment feature of the Retirement Plan less quarterly non-discretionary administrative fees.
/s/ Joanna M. Totsky, Attorney-in-Fact
2024-12-19