Along with the range of colors of common peonies, there are equally as many cultivars, tree peonies ... are slow-growing but ...

your region and climate will determine when everything blooms since peonies and trees will produce flowers much earlier in southern states than they do further north. Here are some flowering trees ...

Anything that's in your vase before you fill it with water like dust and bacteria will get drunk by the flowers ... with the exception of tree peonies with those woody stems that can go in ...