Complex sentence: He grew about 1000 new Iris seedlings each year and opened the house to display his collection, and used to walk the fields and hedgerows searching for softer colour variants of poppies.
Split into simpler sentences: He grew about 1000 new Iris seedlings each year and opened the house to display his collection. He also used to walk the fields and hedgerows searching for softer colour variants of poppies.