Grotus worked as a drawing teacher at the St. Petersburg schools and was a director at Suvalov’s – Ozerku gymnasium.
In 1920 he returned to Latvia.
He was a member of Independent Artist’s Union, also took part in directory work and took part in the exhibitions of the union (1921. –1934)
1984. – The memory exhibition.
He worked as a teacher at Riga’s 25. first school.
His painting manner was realistic with decorative stylization, especially at landscapes.
Grotuss was a very creative artist (approximately 2000 works)