False indigo in foreground and native azalea at upper right, Jones Lab last April.
Some native plants I never introduce into the garden. Festoons of Carolina jessamine adorn the trees along woods' edge in spring, but there isn't a spot for it in my garden. So far I have not found a suitable spot for Baccharis other than at woods' edge or field edges. Seeds of Native Carolina Cherry Laurel is frequently brought in by birds. It's a lovely bright green evergreen, growing to great heights. It makes a beautiful screen between our field and the neighbors just to the north.
Echinacea was a recent post: Echinacea: One Seed Chicago so I won't post echinacea again.
Calycanthus, our native sweetshrub has maroon flowers and bright green foliage. It is a suckering plant, so propagation is easy.
Beautyberry often volunteers within its range, sometimes with such vigor as to be regarded as a weed species, but the rogue plants can be easily removed. Fall interest is the yellow-green foliage combined with the purple fruits. Other cultivars are C. bodinieri, C. dictoma, and C. japonica, about which I know nothing.
Invasives that I've been offered from the gardens of others include Popcorn Tree. Growing on the property are Chinaberry, Privet and Lonicera japonica, planted by birds. Brooklyn Botanic Garden has a great guide to native plants to use instead of less desirable invasives :
Native Alternantives to Invasive Plants
One plant that BBG mentions as an invasive, Vitex, has never reseeded in my garden and I have four large plants that were rooted cuttings. The callicarpa that they advocate as a substitute does seed about everywhere here. You may find others such as Japanese Spiraea listed as invasive that are well behaved in some gardens, not others.
What natives are you adding as you edit your gardens?
What non-native plants do you retain as indicators of a sense of place?