Zinnia, Button Box Dwarf Zinnias, 200 Seeds! Groco BUTTON BOX ZINNIAS WINNER/ BUYER GETS 200 SEEDS!! Annual Mix of colors Full sun 8 to 10 inches tall You've already grown the California giants and the cactus and other varieties. Now it's time to try something new in zinnias. Button Box zinnias bloom all season. They bloom in a variety of colors including yellow, pink, red, and orange. Flowers are fully double and beehive shaped. Stems are long enough for cutting. They can be started indoors or outdoors. Can even be sown as late as July with blooms for fall. They are very easy to grow. Comes with planting instructions.