Thank you for your suggestions. I, too, thought of the ones you mentioned, but I can find no exact match. I guess I will have to make a trip back to the nursery if I really need to find out it's name. I think there are some snapdragons calling me back anyway. Jane

The first looks like a petunia. The second calendua. And the third has two different plants in it, but I assume you mean the big blossom which looks like a zinnia. FataMorgana

In warmer climates they won't need bottom heat and you can try any time from spring thru to early autumn. Semi hardwood cuttings, below a node, and above a visible new leaf point. Rooting hormone helps. Remove or trim leaves, put somewhere with humidity like pot with plastic cover, plastic box etc. You can also propagate from seed but they are slow growing that way.

Definitely A. hippocastanum. Indian horse chestnut has a different leaf shape and flower, freezes back periodically even here in the Seattle area (Zone 8) - I seriously doubt it is actually hardy to Zone 7. There is an apparently universal misperception that the 0-10F, 10-20F etc. refer to how cold it gets in each zone rather than it being an averaging of how cold it gets. So to be a successful planting as low as Zone 7 Indian horse chestnut would probably have to be able to sail through occasional temperatures below 0F in a given location. I've seen indications made by effects of cold winters on specimens in my area that Indian horse chestnut is hardy to about 10F. The range given for Zone 7 is 0-10F and - especially if they were a commercial source - it seems someone may want to push the tree's ability a little bit. So they might say the tree is hardy to Zone 7, because the top of the range for Zone 7 is 10F. Of course, it being a wild species there could be some variation in hardiness between different forms. But I doubt there is a great range of genetic material of this particular item being grown in North America.