All Flesh is Grass (novel)

Lore & Background

The book is set in the town of Millville, Wisconsin, in the Midwestern United States. Simak was born in Millville, which formed the setting for many of his stories. The book begins with the town being suddenly enclosed by a mysterious barrier. The barrier has been placed by an extraterrestrial intelligence that wants to collaborate with humans as it has with other alien races, but the town's inhabitants—as well as, eventually, the world in general—react to it fearfully. The extraterrestrials, a form of hive mind or superorganism, have the form of purple flowers.

Reader's Guide

The novel follows the experiences of Brad Carter who, unlike most of his childhood friends, has remained in the slowly declining town, and who is chosen by the alien intelligence as its spokesperson. Eventually, he meets the extraterrestrial beings and agrees to speak for them on Earth though still being suspicious of their motives. All Flesh is Grass was first published by Doubleday in 1965. The novel was nominated for the Nebula Award for Best Novel in 1966. A review in Science Fiction and Fantasy Book Review stated that 'Simak's great forte is the creation of sympathetic non-humans who patiently attempt communication with distrustful mankind.' The review also stated that Simak's work accurately reflected the concerns of 1960s. Reviewers of Stephen King's book Under the Dome have pointed out the previous use of the plot device of a mysterious barrier in All Flesh is Grass.

Did You Know?

• The novel was nominated for the Nebula Award for Best Novel in 1966.
• The extraterrestrials in the novel take the form of purple flowers.
• The setting, Millville, Wisconsin, was also the birthplace of author Clifford D. Simak.
• Reviewers of Stephen King's Under the Dome noted the earlier use of a mysterious barrier in this novel.

Plot & Setting

All Flesh is Grass unfolds in Millville, Wisconsin, a small Midwestern town that serves as the story's entire stage. The novel opens with a sudden, inexplicable event: an invisible barrier seals the community off from the rest of the world, cutting it off from outside contact. The town, already in a state of slow decline, is now entirely isolated. At the center of the narrative is Brad Carter, a man who, unlike most of his childhood friends who have left, has stayed behind in the shrinking community. It is Brad who is ultimately selected by the alien intelligence responsible for the barrier to serve as its spokesperson on Earth. His journey takes him from wary observer to reluctant ambassador, as he eventually makes contact with the extraterrestrial beings and agrees to represent them to humanity. Yet even in that role, Brad never fully sheds his suspicion of their true intentions, lending the story a persistent undercurrent of tension between trust and mistrust.

The Alien Intelligence

The extraterrestrial presence at the heart of All Flesh is Grass is one of Simak's most distinctive creations. Rather than taking humanoid or mechanical form, these beings exist as a hive mind or superorganism that manifests physically as purple flowers. This botanical appearance immediately sets them apart from the metallic, militaristic aliens common in mid-century science fiction. Their stated purpose is not conquest or domination but collaboration. They have already established cooperative relationships with other alien races across the galaxy, and they extend the same offer to humanity. The barrier around Millville is, in their view, an invitation to dialogue rather than a cage. The human response, however, is overwhelmingly one of fear. The townspeople, and eventually the broader world, interpret the enclosure as a threat, reacting with suspicion and hostility toward beings who simply wish to communicate. This mismatch between the aliens' patient goodwill and humanity's defensive terror drives much of the novel's emotional tension.

Publication & Critical Reception

Clifford D. Simak's All Flesh is Grass was first published in 1965 by Doubleday, one of the major literary houses of the era. The novel quickly attracted critical attention in the science fiction community, earning a nomination for the Nebula Award for Best Novel in 1966. Reviewers responded with particular enthusiasm to Simak's characterization of the alien beings. A review in Science Fiction and Fantasy Book Review singled out what it called Simak's great strength: the creation of sympathetic non-human characters who patiently attempt to bridge the gap with a distrustful and fearful humanity. The same review observed that the novel's themes resonated closely with the anxieties of the 1960s, suggesting that Simak had tapped into a broader cultural moment of uncertainty about contact, trust, and the unknown. The Nebula nomination and the favorable critical response cemented the book's place among the more thoughtful entries in Simak's extensive body of work.

Legacy & Literary Echoes

Perhaps the most striking evidence of All Flesh is Grass's lasting influence is its direct echo in Stephen King's 2009 novel Under the Dome. Reviewers of King's book have explicitly pointed out that the central plot device—a mysterious, impenetrable barrier sealing a small town off from the outside world—was already employed in Simak's 1965 novel. This connection underscores how Simak's premise anticipated a story concept that would later become a bestseller decades later. Beyond that direct lineage, the novel endures as a study in first-contact psychology, exploring how a community processes the arrival of the utterly alien when the aliens themselves are benevolent. Simak's personal roots in Millville, Wisconsin—his actual birthplace—give the setting an authenticity that grounds the speculative premise in a very real, very small Midwestern place. The book remains a touchstone for readers who value character-driven, contemplative science fiction over spectacle.