The Gardener

From Author Wars - https://authorwars.com/books/the-gardener-2972623.html

Overview:

Title: The Gardener
Author: Margaret St Clair
Year: 1976
Type: Short Fiction

Editions/Publications:

Unknown. The Roots of Evil: Weird Stories of Supernatural Plants (Unknown, Margaret St Clair, Taplinger, ISBN-10: 0800868374, $7.95, 191 pages, Hardcover, Anthology)