Houston Zoo Boo 2024. During the daytime hours, the zoo is open from 9:00 a.m. T he houston zoo is getting an early start on halloween with the return of its popular zoo boo event, running from sept.
Highlights include the carved pumpkins sponsored by frost bank, pumpkin tree sponsored by. — from september 29 until the end of october, the houston zoo will host their spectacular zoo boo event, filled with more fall festivities than ever!