The tree or plant associated with Navagraha Guru or Brihaspati or Jupiter is peepal. People facing problems in horoscope due to the bad positioning of Navagraha Guru or Brihaspati or Jupiter will find relief after worshiping peepal tree. It is highly meritorious to plant peepal tree and take care of it.
The plant is known as Arasu in Tamil and Ashvattha in Sanskrit.
The worship with peepal leaves to Navagraha Guru or Brihaspati should be performed in the morning along with sunrise. Brihaspati is also worshipped with the leaves of the plant on Thursday and it is doubly auspicious.
It is highly meritorious to worship Guru or Brihaspati with parts of the plant when there is auspicious yog like sarvartha siddha or amrit siddhi yoga or pushya nakshatra.
ॐ देवानां च ऋषीणां गुरुं कांचनसन्निभम।
Om Devanam Cha Rishinam Gurum Kanchana Sannibham