Currently available on 2 streaming services.

The Sea of Grass streaming: where to watch online?

You can buy "The Sea of Grass" on Apple TV, Fandango At Home as download or rent it on Apple TV, Fandango At Home online.

Cast

Spencer Tracy
Col. James B. Brewton
Katharine Hepburn
Lutie Cameron Brewton
Robert Walker
Brock Brewton
Melvyn Douglas
Brice Chamberlain
Phyllis Thaxter
Sara Beth Brewton
Edgar Buchanan
Jeff
Harry Carey
Doc J. Reid
Ruth Nelson
Selina Hall
William Phillips
Banty
Robert Armstrong
Floyd McCurtin
James Bell
Sam Hall
Robert Barrat
Judge Seth White
Charles Trowbridge
George Cameron
Trevor Bardette
Andy Boggs
Morris Ankrum
A.J. Crane
Russell Hicks
Maj. Dell Harney
Eddie Acuff
Cattleman (uncredited)
Erville Alderson
First Station Agent (uncredited)
Myrtle Anderson
Townswoman (uncredited)
Stanley Andrews
Bill the Sheriff (uncredited)
Frank Austin
Second Station Agent (uncredited)
Polly Bailey
Townswoman (uncredited)
Frank Baker
Juror (uncredited)
Dick Baron
Newsboy (uncredited)
Jack Baxley
Homesteader (uncredited)
Vangie Beilby
Old Townswoman (uncredited)
Joseph E. Bernard
Homesteader (uncredited)
Margaret Bert
Townswoman (uncredited)
Robert Bice
Brewton Ranch Hand (uncredited)
Barbara Billingsley
Bridesmaid (uncredited)
Whit Bissell
Ted - the Clerk (uncredited)
Chet Brandenburg
Townsman (uncredited)
Buck Bucko
Townsman (uncredited)
Marietta Canty
Rachael (uncredited)
Nora Cecil
Mrs. Ryan - Nurse (uncredited)
William Challee
Deputy Sheriff (uncredited)
Wheaton Chambers
Dean (uncredited)
Ruth Cherrington
Townswoman (uncredited)
Naomi Childers
Townswoman (uncredited)
Gertrude Chorre
Brewton's Indian Nurse (uncredited)
Davison Clark
Cattleman (uncredited)
Gene Coogan
Cowhand (uncredited)
Joseph Crehan
Colorado Sen. Grew (uncredited)
Sidney D'Albrook
Townsman (uncredited)
Frank Darien
Minister (uncredited)
Vernon Dent
Train Conductor (uncredited)
Helen Dickson
Piano Player Spectator (uncredited)
Franz Dorfler
Townsman (uncredited)
Budd Fine
Brakeman (uncredited)
Douglas Fowley
Joe Horton (uncredited)
Slim Gaut
Townsman (uncredited)
Fred Gilman
Cattleman (uncredited)
Ann Gowland
Sarah Beth - Age 2 (uncredited)
Fred Graham
Poker Game Spectator (uncredited)
Jesse Graves
Luke (uncredited)
Frank Hagney
Poker Game Spectator (uncredited)
Chuck Hamilton
Townsman (uncredited)
John Hamilton
Forrest Hamilton (uncredited)
Jimmy Hawkins
Brock - Age 5 (uncredited)
June Hedin
Sarah Beth - Age 11 (uncredited)
Earle Hodgins
Brewton Ranch Hand (uncredited)
Stuart Holmes
Party Guest (uncredited)
William Holmes
Gambler (uncredited)
George Huggins
Townsman (uncredited)
Bob Ingersoll
Station Loafer (uncredited)
Dick Johnstone
Townsman (uncredited)
Jack Kenny
Townsman (uncredited)
Paul Langton
Young Doctor (uncredited)
Nolan Leary
Homesteader (uncredited)
Ralph Littlefield
Homesteader (uncredited)
Leota Lorraine
Townswoman (uncredited)
George Magrill
Homesteader (uncredited)
Robert Malcolm
Townsman (uncredited)
Chief Many Treaties
Indian (uncredited)
Mickey Martin
Newsboy (uncredited)
Kermit Maynard
Station Loafer (uncredited)
Charles McAvoy
Homesteader (uncredited)
Charles Middleton
Charley - Saloon Owner (uncredited)
Robert Milasch
Townsman (uncredited)
Howard M. Mitchell
Railroad Conductor (voice) (uncredited)
Carol Nugent
Sarah Beth - Age 7 (uncredited)
James O'Rear
Piano Tuner (uncredited)
Norman Ollestad
Brock - Age 8 (uncredited)
Tex Parker
Townsman (uncredited)
Frank Pharr
Station Loafer (uncredited)
Lee Phelps
Homesteader (uncredited)
Obed 'Dad' Pickard
Townsman (uncredited)
Bernice Pilot
Maid (uncredited)
Paul Ravel
Townsman (uncredited)
George Reed
Uncle Nat (uncredited)
Dick Rich
Loud-Mouthed Salt Fork Townsman (uncredited)
Duncan Richardson
Brock - Age 3 (uncredited)
Buddy Roosevelt
Ike Randall - Brewton Ranch Hand (uncredited)
Gene Roth
Homesteader (uncredited)
Dick Rush
Cattleman (uncredited)
Sam Savitsky
Townsman (uncredited)
Phil Schumacher
Townsman (uncredited)
Allen D. Sewall
Townsman (uncredited)
Irving Smith
Black Servant (uncredited)
Patty Smith
Sarah Beth - Age 4 (uncredited)
Ray Spiker
Townsman (uncredited)
Wyndham Standing
Gambler (uncredited)
Jack Stoney
Poker Game Spectator (uncredited)
Glenn Strange
Bill Roach - Brewton Ranch Hand (uncredited)
Brick Sullivan
Cowhand (uncredited)
Henry Sylvester
Townsman (uncredited)
Forrest Taylor
Homesteader (uncredited)
Ray Teal
Cattleman (uncredited)
Laura Treadwell
Townswoman (uncredited)
Dorothy Vaughan
Mrs. Hodges (uncredited)
John Vosper
Hotel Clerk (uncredited)
Eddy Waller
Homesteader (uncredited)
Dan White
Wake - Brewton Ranch Hand (uncredited)
Guy Wilkerson
Brewton Ranch Hand (uncredited)
Chalky Williams
Townsman (uncredited)
Bill Wolfe
Homesteader (uncredited)
Hank Worden
Bill - Salt Fork Townsman (uncredited)