Hello All!

This is my first year attempting a balcony garden with a fairly windy S.S.W. exposure (on the 11th floor). I've had great success starting a variety of plants from seed, including Thyme, Sage, Rosemary, Habenero Peppers, Lavender, Rosemary, several different Salvias, Cilantro, Coleus (on the shadier portions of the balcony), etc...

My question is this, among the several different varieties of flowers that I planted, the plant (pictured) appeared. I had multiple local trees and weeds pop up which I can only imagine came in on the wind during the spring (we border a large park area in NW DC). Most of these I weeded out, but several of (what appeared to be) trees, caught my interest and I decided to let them grow. Eventually it was weeded down to this one, which suddenly started producing flowers, MANY flowers. Large, almost tropical looking flowers. As it grew it began to look more and more tropical, and was clearly not anything I'd planted.

So, what is it? Months and months ago I did plant a single seed which had gotten stuck to my shoe on a visit to the botanical gardens. Could it be something non-native, or is this simply a local tree / bush which I'm not familiar with. Given the very hot, very humid summers we experience here in DC, I know it's feasible to have grown a tropical species of some sort (at least for now).

My roommates and I are very much enjoying this plant and would like to know what it is, so we can know how to care for it! Thank you all so much for your input.

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