They are bright, you can select a rainbow of colors and sizes. And they are easy.
This past Spring I collected all sorts of aluminum pans and trays that were left over from a big bake sale at work.
With an ice pick I poked holes all over the bottom of the pan for drainage.
Start with a good Seed Starting potting mix that is light and soiless. Those delicate roots need room to move easily.
Fill the container with the seedling mixture and dampen thoroughly but not muddy wet
Once planting medium is ready, separate your seeds out onto a dark piece paper.
Twist the toilet/paper towel rolls (cut to about an inch and a half) down into the planting medium. These will be your little pots that will hold the seeds.
Using a spray bottle, spritz thoroughly. over the top of the pan with Saran Wrap to create a small green house effect. Once you have sprouts, remove the plastic wrap and start maintaining your seedlings.
Once they have several leaves, plant them in a sunny location in your garden
I love to watch the formation of a bloom
Once they start blooming they keep going and going. Deadheading is a good idea; you'll get so many more blooms by doing so
Zinnias make me smile
One more treat they provide is that they bring in an abundance of butterflies, bees and hummingbirds to the garden.