How Does Your Garden Grow? is one of the gardening books written by Wilson, who was genuinely interested, not just in gardens, but in the gardeners who tended them. Though at one time he spoke positively upon the seemingly miraculous wonders of
pesticides and
herbicides, Wilson was an early advocate of wearing protective garments while using the primitive agricultural chemicals of the mid-20th century. Later, Wilson's stance changed, because of the health problems and deaths of many his friends and colleagues, caused by chemicals such as
DDT. He was also an early advocate of
organic gardening. Wilson's dedication to gardening went beyond landscaping, writing and broadcasting. He spoke at many gardening club meetings and nursery seminars. Among the clubs Wilson was involved with was the Foothill Men's Garden Club, which he co-founded in 1962. The club, which encompasses
Santa Clara and
San Mateo counties, raises money to preserve the natural environment through the sales of members' homegrown products in an annual garden sale. ==Death and memorial==