Fertilizer Can Make a Huge Difference Natural Building Blog Miracle Gro 25 Quart Organic Outdoor Potting Mix 71281430 Blain's Farm & Fleet How To Grow Tomatoes In Pots In Small Spaces (And Still Get A Big Harvest) You sure can plant zinnia seeds in pots but dont forget to look for the smaller dwarf variety of seeds!, Last year I specifically used the Thumbelina zinnia elegans from @botanical_interests and Anthurium Acropolis Byfords