I love your railing garden. I see room for more than two! :-)

you would have to measure that railing top width... but i could see 9 more mini's in a thingee like this ... lol ... talk about enabling ... only downside might be wintering over mini's ....

ken

https://www.homedepot.com/p/Bloem-21-in-Terra-Cotta-Milano-Plastic-Deck-Rail-Planter-4-piece-MRP421-46/205014481

Very much diggin' your scroll-work plant stands.

Willing to bet, you have a solid plan of action, anytime stiff winds kick up!

Playing devil's advocate, and going along with Ken's idea to add minis, there has to be a way to hang some planter boxes off the railing, and pop some cuties in there.

I picked up a three level planter like this at Aldi’s last year. I can guarantee you I didn’t pay any $35 for it. It’s still empty, but eventually I’ll find a place for it.

Three level planter

Looks like you’re on the ground floor. Are the petunias yours too? They’re pretty. Go for as many as you can squeeze in but don’t block the exit!

Thank you, I got the stands at Dollar General. Surprisingly sturdy. The rail is pretty wide so wind isn't a big issue. I worry more about my hanging Petunia baskets when the wind is heavy during a storm. Yes, the Petunias are mine! I'm very proud of my Petunias! I have a lot of unusual and hard to find colors. I also have Marigolds and a tomato plant.