fertileness

fertile +‎ -ness

fertileness (uncountable)

1. (rare) The state or characteristic of being fertile.
   • c. 1583, Sir Philip Sidney, A Defence of Poesie and Poems, "An Apologie for Poetrie":

     ... and he, according to the fertileness of the Italian wit, did not only afford us the demonstration of his practice, but sought to enrich our minds.

   • 1915, E. L. Kolb, chapter 7, in Through the Grand Canyon from Wyoming to Mexico:

     This valley is eighty-seven miles long. It did not have the fertileness of Brown's Park.

   • 2001, Maureen Anderson, "Unraveling the Southern Pastoral Tradition," Southern Literary Journal, vol. 34, no. 1, p. 4:

     The fertileness of Place du Bois, "rich in its exhaustless powers of reproduction," reflects a golden age of easy life.

• fecundity, fertility