"sown in" is a valid phrase and is used in written English.
It is used to refer to the act of planting seeds. For example: The farmer sown in the grains carefully, ensuring a successful harvest.
What is sown in politics generally comes round to reaping.
The first year seed is sown in July.
Winter wheat is always sown in the fall; spring wheat is generally sown in the spring but can be sown in the fall where winters are mild.
How much mistrust will be sown in the émigré community?
The field beans were sown in drills and the rye grass broadcast and then raked over.
There were familiar themes here, all sown in a heavy layer of grit.
The seeds of the New York City bilingual program were sown in 1974.
The seeds of a romance are sown in terms of equality.
But the seeds of Labour's downfall in Scotland had been sown in Scotland before then.
Flanders poppies are annuals that should be sown in late fall or very early spring.
Mr. Lee's slumping popularity was sown in his first glorious moment as president.
