The tree or plant associated with Navagraha Mangal or Mars is cutch tree or khadira or kaira. People facing problems in horoscope due to the bad positioning of Navagraha Mangal or Angarak will find relief after worshiping Mangal or mars with the khadira leaves and flowers.
The plant is known as karungali in Tamil and katha in Hindi.
The worship with khadira plant to Navagraha mangal should be performed in the evening when there is moon in the sky. Mangal is also worshipped with the leaves on Tuesday and it is doubly auspicious.
It is doubly auspicious to worship Mangal with parts of the tree when there is Pradosh vrat on Tuesday.
The mantra to be chanted while offering prayers is
अं अंगारकाय महाभागाय नमः
Amh Angarakaya Mahabhagaya Namah