UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

Amendment No. 1

CURRENT REPORT

Pursuant to Section 13 OR 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) October 21, 2013

GLADSTONE LAND CORPORATION

(Exact Name of Registrant as Specified in Charter)

Registrant’s telephone number, including area code: (703) 287-5800

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Explanatory Note

Gladstone Land Corporation previously filed a Current Report on Form 8-K on October 25, 2013 (the “Original Form 8-K”), reporting the closing of its acquisition, through its wholly-owned operating partnership, Gladstone Land Limited Partnership (collectively with Gladstone Land Corporation, the “Company”), of a farm in Monterey County near Salinas, California, consisting of 166 farmable acres, known as “Natividad Road.” This Current Report on Form 8-K/A is being filed solely for the purposes of amending the Original Form 8-K to provide the financial information related to such acquisition on October 21, 2013, as required by Item 9.01 of Form 8-K in accordance with Rule 3-14 and Article 11 of Regulation S-X, respectively.

Item 9.01. Financial Statements and Exhibits.

(a) Financial Statements of Businesses Acquired.

(b) Unaudited Pro-forma Condensed Consolidated Financial Information.

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Report of Independent Auditors

To the shareholders of Gladstone Land Corporation

We have audited the accompanying Historical Summary of Revenue and Certain Operating Expenses (the “Historical Summary”) of Natividad Road (the “Property”), for the year ended December 31, 2012.

Management’s Responsibility for the Financial Statements

Management is responsible for the preparation and fair presentation of the financial statements in accordance with accounting principles generally accepted in the United States of America; this includes the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of financial statements that are free from material misstatement, whether due to fraud or error.

Auditor’s Responsibility

Our responsibility is to express an opinion on the Historical Summary based on our audits. We conducted our audit in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the Historical Summary is free from material misstatement.

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the Historical Summary. The procedures selected depend on our judgment, including the assessment of the risks of material misstatement of the Historical Summary, whether due to fraud or error. In making those risk assessments, we consider internal control relevant to the Company’s preparation and fair presentation of the Historical Summary in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control. Accordingly, we express no such opinion. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluating the overall presentation of the Historical Summary. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion.

Opinion

In our opinion, the Historical Summary referred to above presents fairly, in all material respects, the revenue and certain operating expenses, as described in Note 2, of the Property for the year ended December 31, 2012, in conformity with accounting principles generally accepted in the United States of America.

Other Matter

The accompanying Historical Summary was prepared for the purpose of complying with the rules and regulations of the Securities and Exchange Commission (for inclusion on Form 8-K/A of Gladstone Land Corporation) as described in Note 2, and is not intended to be a complete presentation of the Property’s revenue and expenses.

/s/ PricewaterhouseCoopers LLP

McLean, Virginia

December 20, 2013

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Natividad Road

Historical Summary of Revenue and Certain Operating Expenses

Year Ended December 31, 2012

The accompanying notes are an integral part of these financial statements.

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Natividad Road

Historical Summary of Revenue and Certain Operating Expenses

Nine Months Ended September 30, 2013

(Unaudited)

The accompanying notes are an integral part of these financial statements.

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Natividad Road

Notes to Statements of Revenue and Certain Operating Expenses

Note 1. Business

The accompanying historical summaries of revenue relate to the operations of Natividad Road (the “Property”), consisting of the revenue of a farm totaling 166 farmable acres located in Monterey County near Salinas, California. Gladstone Land Corporation, through its wholly-owned operating partnership, Gladstone Land Limited Partnership (collectively, the “Company”), acquired the Property in October 2013 for total consideration of approximately $7.3 million.

Note 2. Summary of Significant Accounting Policies

The accompanying historical summaries of revenue were prepared for the purpose of complying with Rule 3-14 of Regulation S-X as promulgated by the Securities and Exchange Commission in connection with the Company’s acquisition of the Property. The historical summaries are not representative of the actual operations of the Property for the periods presented, nor indicative of future operations; however, the Company is not aware of any material factors relating to the Property that would cause the reported financial information to not necessarily be indicative of future operating results. In addition, certain expenses, primarily amortization and interest expense, which may not be comparable to the expenses expected to be incurred by the Company in future operations of the Property, have been excluded. Additionally, the Company’s lease with the tenant is structured in such a way that the tenant is responsible for substantially all of the Property’s operating expenses other than property taxes. Except for property taxes, the Company does not expect to incur any significant operating expenses in the future operations of the Property, so they have been excluded from this historical summary. The total property taxes for the year ended December 31, 2012, and the nine months ended September 30, 2013 (unaudited), were approximately $35,000 and $27,000, respectively. The Company is required to pay property taxes on the Property through November 4, 2015; however, thereafter, property taxes will be the responsibility of the tenant.

Revenue Recognition

The lease is accounted for as an operating lease, and revenue is recognized on a straight-line basis in accordance with the terms of the related lease.

Use of Estimates

The preparation of this historical summary in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the reported amounts of revenue during the reporting period. Actual results may differ from these estimates.

Note 3. Leases

On November 1, 2007, the Property entered into a three-year lease agreement with Classic Farms (the “First Lease”). The First Lease expired on October 31, 2010; however, Classic Farms remained on the Property as the tenant for an additional two years, through October 31, 2012. For the duration of this two-year period, during which there was no executed lease in place on the Property, Classic Farms continued paying rent in accordance with the terms of the First Lease, which was accepted by the owner. On November 1, 2012, the Property entered into a three-year lease agreement with Mendoza Farms, the subtenant on the Property under the prior lease with Classic Farms. This lease originally provided for one, three-year extension option; however, the right to this option has been waived by the tenant to allow for a

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new tenant to lease the Property at the expiration of the original three-year term. On September 27, 2013, the Property entered into a lease agreement with Bay View Farms, LLC, and NorCal Harvesting, LLC, to commence November 1, 2015. The term of this lease is for nine years and includes one five-year renewal option.

As of December 31, 2012, aggregate future minimum rental payments to be received by the Property under these leases are as follows:

Major Tenants

During the year ended December 31, 2012, and for the nine months ended September 30, 2013 (unaudited), the Property’s total rental revenue of approximately $226,000 and $270,000, respectively, was attributable to only two tenants.

Note 4. Unaudited Interim Statements

The historical summary of revenue and certain operating expenses for the nine months ended September 30, 2013, is unaudited. As a result, this interim historical summary should be read in conjunction with the historical summary and notes included in the December 31, 2012, historical summary of revenue and certain operating expenses. The interim historical summary reflects all adjustments which management believes are necessary for the fair presentation of the historical summary of revenue for the interim period presented. These adjustments are of a normal recurring nature. The historical summary of revenue for such interim period is not necessarily indicative of the results of the entire year.

Note 5. Subsequent Events

The Company evaluated all events that have occurred subsequent to December 31, 2012, through December 20, 2013, the date the financial statements were issued.

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GLADSTONE LAND CORPORATION

UNAUDITED PRO-FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

On October 21, 2013, through its wholly-owned operating partnership, Gladstone Land Limited Partnership (collectively with Gladstone Land Corporation, the “Company”), acquired a 166-acre farm in Monterey County near Salinas, California, known as “Natividad Road” (the “Property”). The Property was acquired for approximately $7.3 million, excluding related acquisition expenses of approximately $43,000. The Company funded this acquisition with the cash available from its initial public offering in January 2013. In evaluating the Property as a potential acquisition and determining the appropriate amount of consideration to be paid, the Company considered a variety of factors, including: location, water and soil quality, credit quality of the tenant, terms of the in-place lease, comparative land values and comparative rents. The current tenant has leased the Property since November 1, 2012, under a lease with a term of three years. The current lease provides for fixed annual rental payments of $360,000 over the life of the lease.

The pro-forma condensed consolidated balance sheet as of September 30, 2013, and the pro-forma condensed consolidated statements of operations for the year ended December 31, 2012 and for the nine months ended September 30, 2013, have been prepared to comply with Article 11 of Regulation S-X, as promulgated by the Securities and Exchange Commission. The pro-forma condensed consolidated balance sheet as of September 30, 2013 is presented as if the acquisition of the Property was completed on September 30, 2013. The pro-forma condensed consolidated statements of operations for the year ended December 31, 2012 and the nine months ended September 30, 2013 are presented as if the acquisition of the Property was completed on January 1, 2012. The pro-forma condensed consolidated balance sheet as of September 30, 2013, and the pro-forma condensed consolidated statements of operations for the year ended December 31, 2012 and for the nine months ended September 30, 2013, are not necessarily indicative of what the actual financial position and operating results would have been had the Property acquired in the current year been acquired on September 30, 2013 and January 1, 2012, respectively, nor do they purport to represent the Company’s future financial position or operating results.

The unaudited pro-forma condensed consolidated financial statements should be read in conjunction with the consolidated financial statements of Gladstone Land Corporation and the accompanying notes thereto filed on Form 10-K for the year ended December 31, 2012, and on Form 10-Q for the nine months ended September 30, 2013, and the statements of revenue and certain operating expenses, filed in accordance with Rule 3-14 of Regulation S-X, of Natividad Road, for the period from January 1, 2013, through September 30, 2013, and for the year ended December 31, 2012. In the Company’s opinion, all adjustments necessary to reflect the effect of the Property acquired have been made.

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GLADSTONE LAND CORPORATION

PRO-FORMA CONDENSED CONSOLIDATED BALANCE SHEET

AS OF SEPTEMBER 30, 2013

(UNAUDITED)

The accompanying notes are an integral part of these financial statements.

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GLADSTONE LAND CORPORATION

PRO-FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

YEAR ENDED DECEMBER 31, 2012

(UNAUDITED)

The accompanying notes are an integral part of these financial statements.

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GLADSTONE LAND CORPORATION

PRO-FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

NINE MONTHS ENDED SEPTEMBER 30, 2013

(UNAUDITED)

NM = Not Meaningful

The accompanying notes are an integral part of these financial statements.

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GLADSTONE LAND CORPORATION

NOTES TO UNAUDITED PRO-FORMA

CONDENDSED CONSOLIDATED FINANCIAL STATEMENTS

On October 21, 2013, through its wholly-owned operating partnership, Gladstone Land Limited Partnership (collectively with Gladstone Land Corporation, the “Company”), acquired a 166-acre farm in Monterey County near Salinas, California, known as “Natividad Road” (the “Property”). The property was acquired for approximately $7.3 million, excluding related acquisition expenses of approximately $43,000. The Company funded this acquisition with cash available from its initial public offering in January 2013. The current tenant has leased the Property since November 1, 2012, under a lease with an original term of three years. The current lease provides for fixed annual rental payments of $360,000 over the life of the lease.

Adjustments to Unaudited Pro-forma Condensed Consolidated Balance Sheet

The unaudited pro-forma condensed consolidated balance sheet as of September 30, 2013, reflects the following adjustments:

The value allocated to buildings and improvements is depreciated using the straight-line method over the shorter of the estimated useful life or 39 years. Tenant improvements are depreciated over the estimated useful life, and in-place leases and leasing costs are amortized over the remaining term of the lease. The value of below-market leases is amortized over the remaining, non-cancelable term of the in-place lease and recorded as an increase to rental income and is included in the accompanying Pro-Forma Condensed Consolidated Balance Sheet as Deferred rent liability, net.

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Adjustments to Unaudited Pro-forma Condensed Consolidated Statements of Operations

The adjustments to the pro-forma condensed consolidated statements of operations for the year ended December 31, 2012, and the nine months ended September 30, 2013, are as follows:

The pro-forma adjustment for rental income for the nine months ended September 30, 2013, consists of two parts: (a) $270,000 to reflect the terms of the acquired lease as if it had been in place for the full nine months ended September 30, 2013, and (b) $59,684 for an adjustment attributable to the effect of acquiring a below-market lease.

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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 hereunto duly authorized.

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