fruitful

adjective2

1. •
   Favourable to the growth of fruit or useful vegetation; not barren.

   • And God blessed them, saying, Be fruitful, and multiply, and fill the waters in the seas, and let fowl multiply in the earth. — 1611
2. •
   Being productive in any sense; yielding benefits.

   • The extra work in the office turned out to be fruitful after all—I got promoted