Do tree peonies grow better in pots or in the soil?
I have 1st year tree peony seedlings growing in both pots and directly in the garden beds, and I'm wondering; what would they grow better in? The potting soil in the pot is much looser, but maybe a bit acidic while the flower bed soil has more clay, sand and perhaps more micro-nutrients. Does it even matter?
I'm even growing a bigger tree peony in a 5 gallon pot just to see its performance as I already know itoh peonies seem to thrive in pots. The pots are all on the driveway so they get nice and warm during hours of full sun.
Here is a link that might be useful: Latest peony blog