The Day of the Triffids
The Story and Where It Came From
John Wyndham's novel The Day of the Triffids was published in 1951 and hit readers hard enough to earn an International Fantasy Award nomination the following year and, decades later, a place on the BBC's 2003 "The Big Read" survey. It was Wyndham's first novel published under that pen name, though he had been writing science fiction for years under various combinations of his real name: John Wyndham Parkes Lucas Beynon Harris. The book drew on his own wartime experience. During the Blitz, Wyndham served as a fire watcher and Home Guard member, watching London burn from Bloomsbury rooftops. That sense of ordinary civilization coming apart at the seams runs through everything he wrote.
The setup is deceptively simple. Most of the world's population goes blind after witnessing an apparent meteor shower. Into that chaos comes a second catastrophe: carnivorous plants called Triffids — mobile, venomous, and suddenly very hard to avoid — begin moving against the helpless survivors. What makes the novel particularly unsettling is that the cause of the blinding is never definitively explained. The narrator, Bill Masen, speculates that the dazzling light might have come from a malfunctioning weapons satellite rather than any natural event, which leaves the disaster shadowed by the possibility of human origin.
The Radio Adaptations
The earliest documented radio dramatization aired on the BBC Light Programme between October 2 and November 6, 1957, in six 30-minute episodes adapted by Giles Cooper and produced by Peter Watts. That production starred Patrick Barr as Bill Masen, Monica Gray as Josella Playton, and Gabriel Blunt as Susan. There was also a 1953 BBC Home Service reading — fifteen 15-minute installments read by Frank Duncan — but that was a reading, not a full dramatic serial.
A second production re-used Cooper's script for BBC Radio 4, first broadcast between June 20 and July 25, 1968, produced by John Powell with music by David Cain of the BBC Radiophonic Workshop. Gary Watson took the role of Masen, with Barbara Shelley as Josella and Peter Sallis as Coker; Christopher Bidmead, David Brierley, and Peter Pratt — all later associated with Doctor Who — rounded out the cast. The 1968 production was eventually released as part of BBC Audiobooks' Classic Radio Sci-Fi series, having been recovered from reel-to-reel recordings made from the original masters and donated to archivists by a former BBC employee.
A third BBC dramatization, by Lance Dann in two 45-minute episodes for the BBC World Service, aired on September 8 and September 22, 2001 — the second episode rescheduled from September 15 because of the September 11 attacks.
The Catalogued Episodes
The two episodes in this catalog — "The End Begins" and "Strategic Withdrawal" — carry broadcast dates in February and March 1960. Those dates don't correspond to any fully documented BBC production; the 1957 Light Programme serial and the 1968 Radio 4 production are the two best-documented dramatic adaptations, and neither maps onto 1960. The origin of these specific recordings isn't established in the available record.
What is clear is that the adaptation worked through sound to build its atmosphere — eerie music, carefully placed effects — using the radio medium to suggest the menace of the Triffids and the disorientation of a world suddenly stripped of sight. The episode titles themselves sketch the arc: a beginning that is also an ending, and then a retreat.
Beyond Radio
The novel's reach extended well beyond broadcasting. The 1963 feature film was directed by Steve Sekely and Freddie Francis, with a screenplay by Philip Yordan, and starred Howard Keel and Nicole Maurey. The BBC produced a six-part television serial in 1981, directed by Ken Hannam and adapted by Douglas Livingstone, with John Duttine as Masen and Emma Relph. A second television adaptation came in 2009 — two 90-minute episodes directed by Nick Copus, with a cast that included Dougray Scott, Joely Richardson, Brian Cox, Vanessa Redgrave, Eddie Izzard, and Jason Priestley. Amazon Studios has also announced a planned series with director Johan Renck attached.
The novel's influence spread in less expected directions too. Director Danny Boyle has said that the opening hospital sequence of 28 Days Later (2002) was directly inspired by Wyndham's book. In 2021, The Day of the Triffids was one of six classic British science fiction novels chosen by the Royal Mail to appear on UK postage stamps. Wyndham's manuscripts, typescripts, and correspondence — for this novel and his three other major works — are held in the Wyndham Archive at the University of Liverpool's Special Collections.