Can I plant zinnias in planters on my deck?
I have run out of room in my garden(s), but have some zinnias I would love to grow on my sunny deck (for cutting):
Zowie! Yellow Flame
Giant Enchantress (fuchsia)
Giant Violet Queen
Paintbrush Mixed colors
Maybe someone can help direct me. I have about 12 somewhat thick plastic planters/pots from Walmart. I have them all washed out/disinfected. I measured them-base is 6" and they are 9" at the top of the planter...and they are about 8-9" deep.
Can I plant a few seeds (and later thin them out to one plant after they germinate) in each pot? Would I have to use a seed starting mix, or could I just buy something like Miracle Grow potting soil?
I really appreciate any help you can give me...I tried to search previous posts..but wasn't sure if I was getting the right info for my particular question.
Thanks! :0) Phyl