I love to find anything new and exotic in our garden. These flowers brighten up the garden and bring summer and even spring back. Sternbergia lutea, looks like crocus and one of the common names of this flower is Yellow Autumn crocus,native from Western Mediterranean to Central Asia Moraea spathulata, looks like iris, native to S. Africa Nerine bowdenii, not so rare in Vancouver, native to S. Africa Chrysanthemum zawadskii subsp. acutilobum, native to Korea, Primorye(Russia). Chrysanthemums are always autumn flowers, but looking at these I feel summer. More flowers on Franklinia and her leaves got great color. Spartium junceum, native to n Africa,w Asia, s Europe, this is amazing, I feel like this small bush in bloom forever.
If it's seen as a threat down here, it's going to be a source of wariness, if not concern up there - nurseries may not be selling it.
I wrote that plant up on the Botany Photo of the Day. That plant has been there since 1995 and plants have been grown in the garden since 1977. The Alpine Garden curator, Brent Hine, watches for seedlings. I have rarely seen fruit and it is usually not well formed. Not sure what keeps it from spreading. It is probably right at the edge and might easily adapt to our environment, if any seedlings ever survive a season, so probably better not planted in the home garden.