Outsidepride Hollyhock Zebrina Plant Flower Seed - 500 Seeds Malva sylvestris Zebrina seed will produce a plant that is about 48 inches in height and is loaded with lovely blooms. Start these perennial flower seeds for Zones 5 - 9. Also known as French Hollyhocks, these are sure to please with there eye-catching display. Hollyhock plants procude dazzling flowers that draw attention to the summer garden. They always bring in the humming birds and butterflies! Grow this flower seed for your cutting garden and make gorgeous arrangements for your home. Our seeds are always Non-GMO and packaged for the current year.