As an Oracle who knows everything about horoscopes, I must inform you that there is no specific horoscope or zodiac information related to the first name "Rosentreter" as it is not a traditional zodiac sign or astrological term. However, I can still provide you with some insights based on numerology and the letters in the name "Rosentreter." 

Let's break down the name "Rosentreter" using numerology. The letters in the name have different numerical values, which can give us some insights into the individual associated with the name. R has a value of 9, O has a value of 6, S has a value of 1, E has a value of 5, N has a value of 5, T has a value of 2, and so on. By analyzing the numerical values of the letters in the name "Rosentreter," we can see that the individual associated with this name may be ambitious, creative, and have a strong sense of determination and practicality. They may also have a nurturing and caring nature, with a strong focus on family and relationships. 

In conclusion, while there is no specific horoscope information related to the name "Rosentreter," we can still gain some insights into the individual's personality traits and potential characteristics through the analysis of the name using numerology. Remember, the stars may influence our lives, but ultimately, we have the power to shape our own destiny.