The 33-year-old star shared a picture of the newborn on her Instagram account, in which she also revealed the little one's name.
"Our beautiful little girl Poet Lake Palmer arrived Friday night on April 12th. She is pure magic, we feel like we are in a dream," she captioned a photo of herself holding her baby.
The 'Vampire Diaries' fame Arielle Kebbell added, "Omg I've been thinking about u non stop! Felt her so much. So happy for you and your family congrats!!!!"
The couple shared the happy news in October that they were expecting baby no. 3.
"Thank you for all the beautiful messages we are overjoyed but mostly very grateful," she wrote at that time.
Palmer and Webber welcomed their second child together, Forest Sage Palmer, on December 12, 2016. They are also proud parents to 5-year-old, Bodhi Rain Palmer, who they welcomed in February 2014. Webber also has a son from a previous relationship, reported E! News.
The couple got engaged in August 2013 and tied the knot in December of the same year.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)