Summertime provides a good excuse to do some house-cleaning! We've been attacking our storeroom where "extras" get stashed, so now there's a plethora of pots available at very reasonable prices -- see the pix as example. Especially in smaller apartment-house settings, selection of the pot is almost as important as the flowers contained therein -- come brouse among the best!
...........Are there guidelines or "preferences" in containers? No easy answer here. Obviously, there are some pots that are so lovely themsevles, the flowers need be only de minibus. An example is on our web site among the first favorites -- take a look!
.............And then the relation of the container to its location is important -- a huge tall vase in a tiny corner seldom works. And then there's the relation of the floral design to the vase, too. A rule of thumb is that flowers should be roughly twice as tall as the container, but there's deviation from the "rule" more than not.
......................What's best? An afternoon at the National Gallery should generate ideas about your own likes and dislikes, your sense of form, your appreciation of depth and shadow, etc. That's what makes the floral design in the pot fun to get, to appreciate, and to cherish as a memory -- just like the first kiss, the memory can often grow more fond with time when you've recieved or given lovely flowers in a lovely vase!