Definition of John Innes in US English:

John Innes

noun

  • Attributive Designating potting composts and fertilizers made according to formulae developed at the John Innes Horticultural Institution, and the formulae for such composts and fertilizers.

Origin

1930s. From the name of John Innes, English property developer and philanthropist, who bequeathed land and money for the foundation (in 1910, originally in south London) of the John Innes Horticultural Institution (now the John Innes Centre), for research into plant breeding and other aspects of horticulture.