Q.Re: Tree Lilies
My tree lilies are about 8 feet tall, maybe more. I have bought stakes that are about 6 feet, but not long enough. Any tips for staking lilies are are very tall? I’ve never seen any taller stakes at garden stores. I even bot these stakes when I saw them in Cincinnati visiting family. I live in Wisconsin with many garden stores. Only thing I can think of is metal rebar, but it tends to rust, so I would want to paint it with a rust-proof paint first. And I’d have to have the rebar cut down, because it’s about 12 feet long!!! thanks, Corrine

Certified GKH Gardening Expert
This isn't typical and indicates a problem with the area. Whether this be too moist or too dry, or there are pests eating the roots, there is an issue that needs to be corrected. I notice that some of the plants' leaves droop and some are more erect. This indicates that some of them are starting to fail due to conditions of the soil. The rest might follow.
Check for moisture levels. Too much moisture will suffocate the roots, but being too dry will cause the roots to fail to take in water and nutrients.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-percolation-in-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
As for staking- For now if you want to keep the visual appeal, try taking smaller stakes and only tying to the areas where the stems are bending to straighten out the section.
Here is an article that will help you to care for the plants:
https://www.gardeningknowhow.com/ornamental/bulbs/lily/growing-tree-lily-bulbs.htm