497

The interactive data file included as an exhibit to this filing relates to the supplement to the prospectus for Columbia Mid Cap Growth Opportunity Fund filed pursuant to Rule 497(e) under the Securities Act of 1933, as amended, on October 18, 2012 (Accession No. 0001193125-12-426769 ), which is incorporated herein by reference.

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Prospectus Supplement – October 17, 2012

to the Prospectus of Columbia Mid Cap Growth Opportunity Fund, as supplemented

Effective October 31, 2012, information with respect to Class R3 shares (effective October 31, 2012, known as Class R4 shares) found in the Annual Fund Operating Expenses table and Example in the Fees and Expenses of the Fund section in the Summary of the Fund is hereby replaced, as follows:

Annual Fund Operating Expenses(a) (expenses that you pay each year as a percentage of the value of your investment)
	Class R4
Management Fee		0.74	%
Distribution and/or service (12b-1) fees		0.00	%
Other expenses		0.40	%
Total annual fund operating expenses		1.14	%
Less: Fee waiver/expense reimbursement(b)		0.04	%
Total annual fund operating expenses after fee waiver/expense reimbursement(b)		1.10	%

^(a)  Expense ratios have been adjusted to reflect current fees.

^(b)  Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until March 31, 2014, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, through March 31, 2013 the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.05% for Class R4. Beginning April 1, 2013 through March 31, 2014, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.10% for Class R4. This net operating expense ratio is shown in the table.

Example

Class	1 year		3 years		5 years		10 years
Class R4	$	112	$	359	$	625	$	1,387

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Columbia Funds Series Trust II

Prospectus Date

rr_ProspectusDate

Apr. 01, 2012

Supplement [Text Block]

cfst33_SupplementTextBlock

Prospectus Supplement – October 17, 2012

to the Prospectus of Columbia Mid Cap Growth Opportunity Fund, as supplemented

Effective October 31, 2012, information with respect to Class R3 shares (effective October 31, 2012, known as Class R4 shares) found in the Annual Fund Operating Expenses table and Example in the Fees and Expenses of the Fund section in the Summary of the Fund is hereby replaced, as follows:

Annual Fund Operating Expenses(a) (expenses that you pay each year as a percentage of the value of your investment)
	Class R4
Management Fee		0.74	%
Distribution and/or service (12b-1) fees		0.00	%
Other expenses		0.40	%
Total annual fund operating expenses		1.14	%
Less: Fee waiver/expense reimbursement(b)		0.04	%
Total annual fund operating expenses after fee waiver/expense reimbursement(b)		1.10	%

^(a)  Expense ratios have been adjusted to reflect current fees.

^(b)  Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until March 31, 2014, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, through March 31, 2013 the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.05% for Class R4. Beginning April 1, 2013 through March 31, 2014, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.10% for Class R4. This net operating expense ratio is shown in the table.

Example

Class	1 year		3 years		5 years		10 years
Class R4	$	112	$	359	$	625	$	1,387

Columbia Mid Cap Growth Opportunity Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement [Text Block]

cfst33_SupplementTextBlock

Prospectus Supplement – October 17, 2012

to the Prospectus of Columbia Mid Cap Growth Opportunity Fund, as supplemented

Effective October 31, 2012, information with respect to Class R3 shares (effective October 31, 2012, known as Class R4 shares) found in the Annual Fund Operating Expenses table and Example in the Fees and Expenses of the Fund section in the Summary of the Fund is hereby replaced, as follows:

Annual Fund Operating Expenses(a) (expenses that you pay each year as a percentage of the value of your investment)
	Class R4
Management Fee		0.74	%
Distribution and/or service (12b-1) fees		0.00	%
Other expenses		0.40	%
Total annual fund operating expenses		1.14	%
Less: Fee waiver/expense reimbursement(b)		0.04	%
Total annual fund operating expenses after fee waiver/expense reimbursement(b)		1.10	%

^(a)  Expense ratios have been adjusted to reflect current fees.

^(b)  Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until March 31, 2014, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, through March 31, 2013 the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.05% for Class R4. Beginning April 1, 2013 through March 31, 2014, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.10% for Class R4. This net operating expense ratio is shown in the table.

Example

Class	1 year		3 years		5 years		10 years
Class R4	$	112	$	359	$	625	$	1,387

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

March 31, 2014

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expense ratios have been adjusted to reflect current fees.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Columbia Mid Cap Growth Opportunity Fund | Class R4

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.74%

^[1]

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

^[1]

Other expenses

rr_OtherExpensesOverAssets

0.40%

^[1]

Total annual fund operating expenses

rr_ExpensesOverAssets

1.14%

^[1]

Less: Fee waiver/expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.04%

^[1],[2]

Total annual fund operating expenses after fee waiver/expense reimbursement

rr_NetExpensesOverAssets

1.10%

^[1],[2]

1 year

rr_ExpenseExampleYear01

112

3 years

rr_ExpenseExampleYear03

359

5 years

rr_ExpenseExampleYear05

625

10 years

rr_ExpenseExampleYear10

1,387

1 year

rr_ExpenseExampleNoRedemptionYear01

112

3 years

rr_ExpenseExampleNoRedemptionYear03

359

5 years

rr_ExpenseExampleNoRedemptionYear05

625

10 years

rr_ExpenseExampleNoRedemptionYear10

1,387

[1] Expense ratios have been adjusted to reflect current fees.

[2] Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until March 31, 2014, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, through March 31, 2013 the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.05% for Class R4. Beginning April 1, 2013 through March 31, 2014, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rate of 1.10% for Class R4. This net operating expense ratio is shown in the table.

XML

Document and Entity Information	12 Months Ended
	Apr. 01, 2012
Risk/Return:
Document Type	Other
Document Period End Date	Nov. 30, 2011
Registrant Name	Columbia Funds Series Trust II
Central Index Key	0001352280
Amendment Flag	false
Document Creation Date	Oct. 18, 2012
Document Effective Date	Oct. 18, 2012
Prospectus Date	Apr. 01, 2012

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Columbia Funds Series Trust II
Prospectus Date	rr_ProspectusDate	Apr. 01, 2012
Document Creation Date	dei_DocumentCreationDate	Oct. 18, 2012