Outsidepride Carnival Hollyhock Flower Seed Plant Mix - 1000 Seeds Hollyhock summer carnival mix is a quick growing annual mix that is grown in USDA Zones 3 - 9. This mix has 4 inch double or semi-double blooms in shades of pink, rose, red and yellow. It makes a perfect display for the back of the border and hummingbirds and butterflies will not be able to leave it alone. Alcea Rosea, better known as hollyhocks, can grow up to 72 inches. The bloom formation is much like that of a Carnation flower. The plants themselves display several blooms along their tall, erect stems. These plants are popularly grown in many cottage gardens and can be used along houses & fences, or as a backdrop plant due to it's tall growth habit. All seeds sold by Outsidepride are non gmo and are intended for the current & the following growing season. All seeds are produced from open pollinated plants, stored in a temperature controlled facility. Plant 2 to 3 of these heirloom, non gmo seeds for every plant you desire for your flower garden.