UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q/A

(Amendment No. 1)

(Mark One)

FOR THE QUARTERLY PERIOD ENDED JULY 31, 2012

OR

FOR THE TRANSITION PERIOD FROM              TO             

Commission File Number: 001-34755

Limoneira Company

(Exact name of Registrant as Specified in its Charter)

Registrant’s telephone number, including area code: (805) 525-5541

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes    ¨  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or such shorter period that the registrant was required to submit and post such files). x Yes ¨ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ¨  Yes    x  No

As of August 31, 2012, there were 11,202,910 shares outstanding of the registrant’s common stock.

Explanatory Note

The sole purpose of this Amendment No. 1 (this “Amendment”) to Limoneira Company’s Quarterly Report on Form 10-Q for the quarter ended July 31, 2012, filed with the Securities and Exchange Commission on September 10, 2012 (the “Form 10-Q”), is to furnish Exhibit 101, which contains the XBRL (eXtensible Business Reporting Language) Interactive Data Files for the financial statements and notes included in Part I, Item 1 of the Form 10-Q.

No other changes have been made to the Form 10-Q. This Amendment speaks as of the original filing date of the Form 10-Q, does not reflect events that may have occurred subsequent to the original filing date and does not modify or update in any way disclosures made in the Form 10-Q.

Pursuant to Rule 406T of Regulation S-T, the Interactive Data Files on Exhibit 101 are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.

Item 6. Exhibits

*Previously filed with the Form 10-Q.

**Pursuant to Rule 406T of Regulation S-T, the information in these exhibits shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Act of 1934, as amended, or otherwise subject to liability under that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1934, as amended, except as expressly set forth by specific reference in such filing.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.