Blake had initially received bail for the charges but was arrested and charged with assault, intimidation and wilful damage in relation to a domestic incident in June.
Crown prosecutor Sharee Christensen said the February incident was a "nasty group attack" that Blake was involved in and her sentence needed to reflect the second incident also.
"It's a concern that she was on bail for serious violence and then whilst on bail attacked her partner in a violent manner," Ms Christensen said.
Defence counsel Viv Winiata said his client had been led by her mother into the attack and was only young.
"Clearly the prisoner has a lot of growing up to do but she hasn't had a great upbringing by her mother."
Her mother had let her down, Mr Winiata said.
"I have in her own words that she is 'sorry for what happened to that lady'."
Judge Robert Wolff said Blake had chosen to follow her mother and for that reason needed to face the consequences of her actions.
"You knew what was about to happen and went along anyway. As a result, this lady was attacked. She was injured by being punched and kicked and her cellphone was stolen. Your role in this, as you say ... was less than the others but your involvement in the incident makes you equally responsible."
Blake's sentence included a month's sentence for the charges laid while she was on bail.