This is Portulacaria afra variegata. Also called Elephant's Bush, Elephant's Food Bush, and Spekboom in South Africa where it originates. Different family and order than Crassula ovata. Josh

I've got the same Salvias, but mine were bought at Lowes (very similar). When I bought them 3-4 weeks ago the purple blooms and their stems were upright, just as pretty as they could be. But now the stems seem to all be dropping down to the ground. Everybody elses in the neighborhood are standing straight up and beautiful. Mine are very bad. We have been getting plenty of rain and they are also planted where they will get abundant sun when its shining. Why are mine just drooping to the ground, as well as loosing the deep purple color on the blooms?

It looks like the Uttermost Elara, Item #08134. You can get it through Amazon https://www.amazon.com/Uttermost-Elara-Antiqued-Mirror-Silver/dp/B00QSJ6ONY "This curvaceous mirror features a lightly antiqued silver finish accented with smooth, polished edges. $360.80 with free shipping. Detail: Materials: PU, MDF, Glass Finish: Antiqued Silver Collection: Elara Ship Via UPS: Yes Dimensions: 27"W x 1"D x 43"H Weight: 28 lbs." Several sellers on eBay have it for the same price - HERE

Leaves (and flower buds) look like some sort of viburnum. Some are natives, some are not but none are considered particularly invasive. This looks like Viburnum lantanoides to me, which would be native to your area.