How high does the hollyhock grow in Hazel Dell?

Hazel Dell — How high does a hollyhock grow? Ask Jim Sanborn. He grew one nearly 13 feet tall this year. Sanborn and his wife, Sharan, moved to Hazel Dell from Amboy around six years ago. He grows the flowers every year from seeds. Two years ago, Sanborn had one that was almost as tall, but this year he beat his own record.