Liabilities / Assets
60th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 22-3152632 • 501(c)3 • Boston, MA
Profile
A 24-acre enlargement of the arnold arboretum, a boston city park, was publicly announced on march 13, 1996 by the former mayor thomas m. Menino, the first enlargement of this park in 101 years. The organization is involved in protecting and enhancing public enjoyment in the arboretum lands.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
60th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
62nd percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
13th percentile
Higher net margin than 13% of similar nonprofits.
Top Officer Pay
81st percentile
Higher top officer pay than 81% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
36th percentile
Faster asset growth than 36% of similar nonprofits.
Revenue Growth
63rd percentile
Faster revenue growth than 63% of similar nonprofits.
Assets
Down$42,123
Down $6,981 (-14%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
$42,123
No earlier filing loaded for comparison.
Revenue
Up$12,208
Up $998 (+8.9%) from 2024
Expenses
Up$19,189
Up $13,460 (+235%) from 2024
Net Income
Down-$6,981
Down $12,462 (-227%) from 2024
Most recent year
2025 • Form 990EZDetailed filing. Detailed filing data is available for this year.
A 24-acre enlargement of the arnold arboretum, a boston city park, was publicly announced on march 13, 1996 by the former mayor thomas m. Menino, the first enlargement of this park in 101 years. The organization is involved in protecting and enhancing public enjoyment in the arboretum lands.
| Description | Grants | Expenses |
|---|---|---|
| IN THE PAST YEAR, THE ARBORETUM PARK CONSERVANCY (APC) HAS CELEBRATED THE COMPLETION OF AN IMPORTANT SEGMENT OF THE PROPOSED ROSLINDALE GATEWAY PATH SYSTEM IN THE ARNOLD ARBORETUM. THE NEW ADA ACCESSIBLE ARBORETUM ROAD ENTRANCE OPENED TO THE PUBLIC IN APRIL 2025. THE NEW TUPELO PATH WELCOMES THOUSANDS OF ROSLINDALE RESIDENTS TO THE BUSSEY BROOK MEADOW AND CONNECTS TO SOUTH STREET GATE, THE BLACKWELL PATH, THE WASHINGTON STREET GATE AND THE FOREST HILLS MBTA STATION IN JAMAICA PLAIN. THE APC HAS CONTINUED TO COLLABORATE WITH THE ARBORETUM AND OUR MUNICIPAL AND COMMUNITY PARTNERS ON THE ROSLINDALE GATEWAY PATH PROJECT. THIS PROPOSED ADA-ACCESSIBLE SHARED-USE, PEDESTRIAN AND CYCLING PATH WILL EXTEND THE SOUTHWEST CORRIDOR PATH FROM THE FOREST HILLS MBTA STATION TO THE ROSLINDALE VILLAGE COMMUTER RAIL STATION, PROVIDING A CARBON-FREE COMMUTING OPTION AND CONNECTING BOSTONIANS WITH THE NATURAL ENVIRONMENT CLOSE TO THEIR HOMES. TWO NEW ENTRANCES TO THE ARBORETUM WILL PROVIDE WELCOMING ACCESS TO BOSTON'S EMERALD NECKLACE SYSTEM OF PARKS DESIGNED BY FREDERICK LAW OLMSTED. IN THE PAST YEAR, THE BOSTON PUBLIC WORKS DEPARTMENT (BPWD) HAS COMPLETED THE INSTALLATION OF ADA-COMPLIANT SIDEWALKS TO BOTH SIDES OF ARBORETUM ROAD THAT PROVIDE AN ACCESSIBLE WAY TO THE ENTRANCE TO THE TUPELO PATH AT THE END OF ARBORETUM ROAD. BPWD HAS PLANTED NATIVE TREES ALONG THE REPAVED ROAD. WASHINGTON STREET GATE IMPROVEMENTS ARE UNDER CONSTRUCTION AND WILL BE COMPLETE IN OCTOBER 2025.THE ARBORETUM PARK CONSERVANCY FUNDED TWO NEW INTERPRETIVE SIGNS FOR THE SOUTH STREET AND THE WASHINGTON STREET ENTRANCES. QR CODES ON EACH SIGN WILL CONNECT VISITORS TO THE ARBORETUM'S EXPEDITIONS MOBILE TOUR. THE APC HAS CONTRIBUTED FUNDS TO A NEW POLLINATOR GARDEN AT THE WASHINGTON STREET ENTRANCE. THE APC HAS COORDINATED WITH THE ARBORETUM, THE BOSTON PARKS AND RECREATION DEPARTMENT, THE BOSTON CONSERVATION COMMISSION, THE BOSTON TRANSPORTATION DEPARTMENT (BTD), THE BOSTON PUBLIC WORKS DEPARTMENT (BPWD), THE MBTA, WALKUP ROSLINDALE, ROZZIE BIKES, AND THE LIVABLE STREET ALLIANCE/EMERALD NETWORK. | $0 | $10,250 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| CORNELIA W BROWN | President | PT | $0 | - | - |
| CELESTE WALKER | Vice-President | - | $0 | - | - |
| FILOMENA SCIBELLI | Treasurer | - | $0 | - | - |
| SALLY MCGUIRE MUSPRATT | Director | - | $0 | - | - |
| D BRYAN GLASCOCK | Clerk | - | $0 | - | - |
| CHRIS BUSCH | Director | - | $0 | - | - |
| VIRGINIA MARCOTTE | Director | - | $0 | - | - |
| MICHAEL SHERIDAN | Director | - | $0 | - | - |
“Description: investment income. Amount: 928.”
“Activity classification: museum of trees teaching the world about plants. Grantee name: arnold arboretum of harvard university. Grantee address: 125 arborway boston, ma 02130. Grantee relationship: promotes public access to arboretum. Property description: cash. Amount given: 10,250.”
“Description: filing fees. Amount: 54. Description: clerk fees. Amount: 3,200. Description: supplies. Amount: 10. Total to form 990-ez, line 16: 3,264.”
“Description: fidelity investments at cost. Beg. Of year amount: 23,703. End of year amount: 24,568.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990EZ/ActivitiesNotPreviouslyRptInd | 0 | 0 |
| IRS990EZ/BooksInCareOfDetail/PersonNm | 0 | FILOMENA SCIBELLI |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 7815702273 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 8 WINCHESTER PLACE STE 301 |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | WINCHESTER |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 01890 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 25401 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 17555 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | 0 |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 11280 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | 0 |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | -6981 |
| IRS990EZ/FiledScheduleAInd | 0 | 1 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | 0 |
| IRS990EZ/ForeignOfficeInd | 0 | 0 |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 49104 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 42123 |
| IRS990EZ/GrantsAndSimilarAmountsPaidAmt | 0 | 10250 |
| IRS990EZ/GrossReceiptsAmt | 0 | 12208 |
| IRS990EZ/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartVInd | 0 | X |
| IRS990EZ/InvestmentIncomeAmt | 0 | 928 |
| IRS990EZ/LobbyingActivitiesInd | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | 0 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 49104 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 42123 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 49104 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 42123 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 5525 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 8.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 0.75 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 0.25 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 4 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 5 | 0.25 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 6 | 0.25 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 7 | 0.25 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | CORNELIA W BROWN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | CELESTE WALKER |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | FILOMENA SCIBELLI |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | SALLY MCGUIRE MUSPRATT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 4 | D BRYAN GLASCOCK |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 5 | CHRIS BUSCH |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 6 | VIRGINIA MARCOTTE |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 7 | MICHAEL SHERIDAN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | PRESIDENT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | VICE-PRESIDENT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | TREASURER |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 3 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 4 | CLERK |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 5 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 6 | DIRECTOR |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 7 | DIRECTOR |
| IRS990EZ/OperateHospitalInd | 0 | 0 |
| IRS990EZ/Organization501c3Ind | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990EZ/OrganizationHadUBIInd | 0 | 0 |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 23703 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 24568 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 3264 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | A 24-ACRE ENLARGEMENT OF THE ARNOLD ARBORETUM, A BOSTON CITY PARK, WAS PUBLICLY ANNOUNCED ON MARCH 13, 1996 BY THE FORMER MAYOR THOMAS M. MENINO, THE FIRST ENLARGEMENT OF THIS PARK IN 101 YEARS. THE ORGANIZATION IS INVOLVED IN PROTECTING AND ENHANCING PUBLIC ENJOYMENT IN THE ARBORETUM LANDS. |
| IRS990EZ/PrintingPublicationsPostageAmt | 0 | 150 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | IN THE PAST YEAR, THE ARBORETUM PARK CONSERVANCY (APC) HAS CELEBRATED THE COMPLETION OF AN IMPORTANT SEGMENT OF THE PROPOSED ROSLINDALE GATEWAY PATH SYSTEM IN THE ARNOLD ARBORETUM. THE NEW ADA ACCESSIBLE ARBORETUM ROAD ENTRANCE OPENED TO THE PUBLIC IN APRIL 2025. THE NEW TUPELO PATH WELCOMES THOUSANDS OF ROSLINDALE RESIDENTS TO THE BUSSEY BROOK MEADOW AND CONNECTS TO SOUTH STREET GATE, THE BLACKWELL PATH, THE WASHINGTON STREET GATE AND THE FOREST HILLS MBTA STATION IN JAMAICA PLAIN. THE APC HAS CONTINUED TO COLLABORATE WITH THE ARBORETUM AND OUR MUNICIPAL AND COMMUNITY PARTNERS ON THE ROSLINDALE GATEWAY PATH PROJECT. THIS PROPOSED ADA-ACCESSIBLE SHARED-USE, PEDESTRIAN AND CYCLING PATH WILL EXTEND THE SOUTHWEST CORRIDOR PATH FROM THE FOREST HILLS MBTA STATION TO THE ROSLINDALE VILLAGE COMMUTER RAIL STATION, PROVIDING A CARBON-FREE COMMUTING OPTION AND CONNECTING BOSTONIANS WITH THE NATURAL ENVIRONMENT CLOSE TO THEIR HOMES. TWO NEW ENTRANCES TO THE ARBORETUM WILL PROVIDE WELCOMING ACCESS TO BOSTON'S EMERALD NECKLACE SYSTEM OF PARKS DESIGNED BY FREDERICK LAW OLMSTED. IN THE PAST YEAR, THE BOSTON PUBLIC WORKS DEPARTMENT (BPWD) HAS COMPLETED THE INSTALLATION OF ADA-COMPLIANT SIDEWALKS TO BOTH SIDES OF ARBORETUM ROAD THAT PROVIDE AN ACCESSIBLE WAY TO THE ENTRANCE TO THE TUPELO PATH AT THE END OF ARBORETUM ROAD. BPWD HAS PLANTED NATIVE TREES ALONG THE REPAVED ROAD. WASHINGTON STREET GATE IMPROVEMENTS ARE UNDER CONSTRUCTION AND WILL BE COMPLETE IN OCTOBER 2025.THE ARBORETUM PARK CONSERVANCY FUNDED TWO NEW INTERPRETIVE SIGNS FOR THE SOUTH STREET AND THE WASHINGTON STREET ENTRANCES. QR CODES ON EACH SIGN WILL CONNECT VISITORS TO THE ARBORETUM'S EXPEDITIONS MOBILE TOUR. THE APC HAS CONTRIBUTED FUNDS TO A NEW POLLINATOR GARDEN AT THE WASHINGTON STREET ENTRANCE. THE APC HAS COORDINATED WITH THE ARBORETUM, THE BOSTON PARKS AND RECREATION DEPARTMENT, THE BOSTON CONSERVATION COMMISSION, THE BOSTON TRANSPORTATION DEPARTMENT (BTD), THE BOSTON PUBLIC WORKS DEPARTMENT (BPWD), THE MBTA, WALKUP ROSLINDALE, ROZZIE BIKES, AND THE LIVABLE STREET ALLIANCE/EMERALD NETWORK. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 10250 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990EZ/ScheduleBNotRequiredInd | 0 | X |
| IRS990EZ/SchoolOperatingInd | 0 | 0 |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990EZ/TanningServicesProvidedInd | 0 | 0 |
| IRS990EZ/TaxImposedOnOrganizationMgrAmt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4911Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4912Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4955Amt | 0 | 0 |
| IRS990EZ/TaxReimbursedByOrganizationAmt | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 19189 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 10250 |
| IRS990EZ/TotalRevenueAmt | 0 | 12208 |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990EZ/WebsiteAddressTxt | 0 | WWW.ARBORETUMPARKCONSERVANCY.ORG |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 11280 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 10383 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 18520 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 10441 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 12625 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 63249 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 928 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 827 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 681 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 272 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 229 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 2937 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.95560 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.96270 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 63249 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 11280 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 10383 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 18520 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 10441 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 12625 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 63249 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 66186 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | DESCRIPTION: INVESTMENT INCOME. AMOUNT: 928. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | ACTIVITY CLASSIFICATION: MUSEUM OF TREES TEACHING THE WORLD ABOUT PLANTS. GRANTEE NAME: ARNOLD ARBORETUM OF HARVARD UNIVERSITY. GRANTEE ADDRESS: 125 ARBORWAY BOSTON, MA 02130. GRANTEE RELATIONSHIP: PROMOTES PUBLIC ACCESS TO ARBORETUM. PROPERTY DESCRIPTION: CASH. AMOUNT GIVEN: 10,250. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | DESCRIPTION: FILING FEES. AMOUNT: 54. DESCRIPTION: CLERK FEES. AMOUNT: 3,200. DESCRIPTION: SUPPLIES. AMOUNT: 10. TOTAL TO FORM 990-EZ, LINE 16: 3,264. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | DESCRIPTION: FIDELITY INVESTMENTS AT COST. BEG. OF YEAR AMOUNT: 23,703. END OF YEAR AMOUNT: 24,568. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990-EZ, PART I, LINE 4 - OTHER INVESTMENT INCOME |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990-EZ, PART I, LINE 10 - GRANTS AND SIMILAR AMOUNTS PAID |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990-EZ, PART II, LINE 24 - OTHER ASSETS |
| TransferPrsnlBnftContractsDecl/DeclarationDesc | 0 | THE ORGANIZATION DID NOT, DURING THE YEAR, RECEIVE ANY FUNDS, DIRECTLY,OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.THE ORGANIZATION, DID NOT, DURING THE YEAR, PAY ANY PREMIUMS, DIRECTLY,OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT. |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | CORNELIA W BROWN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6175428552 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-07-28 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | ARBORETUM PARK CONSERVANCY INC |
| ReturnHeader/Filer/BusinessName/BusinessNameLine2Txt | 0 | C/O CORNELIA W BROWN |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | ARBO |
| ReturnHeader/Filer/EIN | 0 | 223152632 |
| ReturnHeader/Filer/PhoneNum | 0 | 6175428552 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 65 FRANKLIN STREET 4TH FLOOR |
| ReturnHeader/Filer/USAddress/CityNm | 0 | BOSTON |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02110 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 1 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 460799858 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | BARRETT & SCIBELLI LLC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 8 WINCHESTER PLACE 301 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | WINCHESTER |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 01890 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 7815702273 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-07-28 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | FILOMENA SCIBELLI CPA |
| ReturnHeader/ReturnTs | 0 | 2025-07-28T11:03:58-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-06-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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