Further details about my plant care

For fertilization & better drainage : i mixed coast of main acid loving plant soil then added cow manure, fish manure, worm casting, bone meal, perlite, pennington plant starter reduce transplant shock, some sprinkle of 10-10-10 granules, and mulch bark on top

For sunlight & watering : I water them when my meter reader points to dry soil and I also move them a few times a day so they can get enough sunlight.

I am not sure what you expect after just a week.....the plants look fine to me. They are not even showing much sign of transplant shock, which is unusual at this time of year and so soon after potting up.

One thing I would strongly suggest is to review some of the many, many threads on the Container Gardening forum discussing the best soil formulations and fertilizing practices. I am not sure you are preparing your containerized plants for their optimum future development.

My experience with peonies is mostly to tuck them in amongst othet perennials and forget about them except when they bloom but as far as I am aware the main above ground growing period for the peony happens all at once in the spring, it’s not going to be putting out anymore significant growth above ground at this point and instead will be building up its roots for next year. It will die back in the winter and come back bigger each year. Also, some peonies are naturally floppy, young peonies even more so.

they like cool weather ... don't touch them til fall

Vilkare Lyor,

Remember, up potting or repotting are not the same as transplanting.

Taking a shovel out to the garden and uprooting an established plant, moving it to a different spot, that's transplanting. And yes, by cutting the roots, sometimes by 90%, to get the plant dislodged can cause the plant can go into shock once it's placed into its new site.

You are up potting, as the plant grows, and are not subjecting the plant to the same stresses by merely tipping out the contents from one pot and placing it into a larger pot and adding more soil around the sides. Two different things altogether. ;-)

The exception would be if you're doing root surgery on a very ingrown or root bound specimen or are very rough and careless when doing the work.