Looks like a Lanai Upright Magenta Verbena. I may be wrong as to the exact variety but it is deffinitely a verbena one of my favorite flowers. Here is a link that might be useful: Lanai upright magenta

I would love to grow that Maple but alas, no room. :o( The ground cover amongst your Violets is Wandering Jew...a weed. Can cause skin allergies on dogs. It is hard to get rid of because anything left will grow back. Vigilance is needed. The garage wall has Ficus pumila, creeping fig. It is pretty and useful but if not kept under strict control, can turn into a monster....you might want to Google information about it before the trouble begins. The small plant with the shiny leaves is Coprosma. Considered a weed in Melbourne. An untidy bush that is hard to keep to a decent shape and reseeds everywhere. I would pull it out now while it's small. Sorry to be so negative, just being honest. Dee.

It looks a lot like woman at the well to me, but the throat is too loose. Here is my Woman at the Well. You can see that the throat is much tighter than your flower. kay

It sounds like a rain lily (Cooperia pedunculata). They only bloom after a rainfall. After they flower, they produce small black seeds w/ a paper-like coating that helps them float in the wind. The seeds sprout and create a bulb that stays dormant until the next rainfall causes it to bloom. The white variety seems to be the most common. I've also seen yellow and pink varieties. If you let them flower and go to seed, you can have a nice little grouping in a few years. One of those lovely surprises after a good rain. :-) Here is a link that might be useful: Hill Country Rain Lily