Siberian Iris in "Pond Pot"?

Pittsburgh, PA(Zone 6a)

In the summer of '08 we visited the Niagara School of Horticulture in Ontario, Canada. (Been there a few times, FABULOUS place! See photo, just a very small portion of the gardens, all free to tour!) They had these large urns/pots filled with water, and potted water plants set down in the water. I don't remember specific plants, although I think one was a ponytail palm?? I've searched online for "water pot gardening" but haven't found anything so far.

I was wondering if I could do this with Siberian Iris, which I understand likes boggy conditions. Or would that be too much water? I have Sibs growing in a garden but they're in too dry a site and are struggling. Mosquitos wouldn't be a problem because I buy mosquito dunks for a small fountain we have and also for our rainbarrel.

Would appreciate any input from DGr's who have grown anything in a water pot...thanks!

Thumbnail by Cheryl_103
Norridgewock, ME(Zone 5a)

The picture shows corkscrew rush, umbrella palm and a few others.Dwarf papyrus works well but I can't find a picture of any year when I used that--apparently I only took a picture the first year. I set rocks in the bottom to get the plant pots high enough that they are not totally under water. I also have a fountain coming into the pot, which cuts down on mosquitoes. This particular version is an ugly plastic water container, so it is buried. If you use something pretty, the same idea would work fine above ground.

Thumbnail by granitegneiss
Hannibal, NY(Zone 6a)

Japanese and Louisiana irises would be a better fit. It would be too wet for siberians in that condition.

Only problem is, in your area, you're going to have to take the pots out of the water before winter, and sink them down in the garden, or someplace similar.

What beautiful gardens those are!

Pittsburgh, PA(Zone 6a)

Thanks for your replies.
Granite, yes, that's what the pots I saw looked like! Very nice...peaceful and 'zen'-looking. We do have one of those 'water pump into wooden barrel' fountains; I could do the same with that.

Polly...I already have Siberians, and they're not doing very well where they are in the garden. Not quite wet enough, I guess. I do love Japanese iris, I'll just have to get me some of those! Never heard of Louisiana irises?

Maybe a self-watering (pot-in-a-pot) would be better for the Sibs; it would stay moist but not be soaking all the time.

Anyone else out there, I'd love to see photos of your potted water gardens.

Thanks again.

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