This is an iris

[Lisak1]

My Louisiana irises (thank you @addy1 !) bloom when planted deeper, but my yellow iris likes to be out of the water.

 

[420benz]

Since my pond is kinda small at 24" dp.I need to add maybe 6 or 7 12x12 blocks to get it up to about water level.
OR as you can see i have floating plants.Would that be a solution?

 

[GBBUDD]

the iris should do just fine with water 6 inches deep or less

 

[Faebinder]

Underwater crowns always grow slower.