Marigold (Tagetes erecta) is well known as natural nematicide and also trap plant on organic gardening.
The flower is so beautiful too.
On October last year, my husband took some old flowers from a public area, then I sowed on the raised beds.
This was the little marigold on January, grew so lush and jostle.
And this week lots of flowers that emerged, but heavy rainfall almost everyday made some plants collapsed.
Pulled up, and safe the flowers as mosquito repellent.
A simple beauty...