They will take about 10 days to start growing. Calendulas will keep blooming all summer long if you keep cutting off the old ones. They are also known as a self seeder, which means if you leave some of the seeds on the plant they will fall to the ground and pop up next year. You simply thin the ones you don't want and leave the rest to grow. Once you grow these, you won't have to buy seeds again, and you will also have plenty to give away to friends.
Zinnias come in all sizes and colors, and they are all planted the same way.
We like the Thumbelinas because they are a shorter and smaller variety. You must wait until it is warm outside before you plant the Zinnia seeds. They do not tolerate even a light frost. Plant the seeds 8 to 10 inches apart. You may have to thin the seedlings later if they are too close.