Hyzina Zucchini This page first published: Mar 31, 2005 · Modified: May 9, 2018 · by CooksInfo. Copyright © 2020Hyzina is an F1 hybrid zucchini. It grows straight, with a dark green skin speckled with lighter green spots. The plant is a vine type one. History Notes Hyzina Zucchini was developed by the Ferry-Morse Seed Company. Released 1961.