Pint size pot. Annual but Zinnia's often readily reseed. Zinnia Cactus Mix features large, 4-6 inch, dahlia-like blooms with quilled or curled petals in vibrant colors, including orange, yellow, pink, red, and white. These annuals are heat-tolerant, grow 24-48 inches tall, and are ideal for cutting gardens, attracting pollinators, and adding texture to bouquets. Plant multiple to increase chances of mixed colors.