Maybe Lonicera tatarica? I suppose it shouldn't surprise me that plants that spring up out of nowhere are invasive, but once in a while I'd love to be surprised and find out they aren't. :/

Thanks dbarron! I guess I'll be hacking that out this week.

These aren't the problem out here that they are back East

I'm pretty sure that tartarica flowers are white, not pink.

Thanks Embothrium! So do you think it's ok to leave it in place?

EDIT: Nevermind. Apparently it get to be 10' wide and 12' high, so it needs to go regardless.

Laceyvail - The literature says that flowers on Lonicerum tatarica can be "white, pink or rose red."

I think that you can prune them pretty hard if you want to keep it. It just means that you'd be committed to the ongoing upkeep.

It sounds like at best it "self seeds vigorously" even if it's not yet a listed invasive locally. Considering I'm surrounded by sensitive wild lands, and somebody locally must already have one of these, I'm thinking letting it go to seed might not be a kindness to myself or the area.

i have occasionally had a volunteer that wasn't invasive - my favorites so far are the ferns, the purple Columbine and the redwood tree. But the invasives unsurprisingly seem to come up a lot more often.

The very thorough treatment Wild Plants of Greater Seattle - Second Edition (2008) by A. Jacobson says Tatarian honeysuckle "reseeds" but is "uncommon" there. Of course, it may increase in local prevalence later but at the moment there are not thousands of them popping up in local greenbelts and woods.

Similarly, Flora of the Pacific Northwest - Second Edition (2018, University of Washington Press, Seattle) describes the species as "occ escaping cult" within the area of coverage.

Yes, more or less a nonissue here. As with many other invasive species common to the eastern half of the US, our growing season is short enough and cool enough not to encourage seed development or seed ripening for these plants to be problematic here.

With invasive species - like real estate - it is location, location, location!!

I think I'm a zone warmer than you gardengal and likely have a longer growing season as well due to my proximity to the water.

I definitely don't have room in either of the locations it popped up in for a 10'x12' shrub, so we whacked them out today (and discovered the one in the hedge had already swallowed a couple shrubs that were struggling underneath). If it pops up again somewhere there's room that won't block the view, I'll feel more comfortable leaving it. No doubt birds will eventually gift me some more from wherever those came from.

Hmmmm....maybe not :-) I am less than a block from the Sound on Bainbridge.....a notably very mild location. I don't even see frost very frequently. But it is the ambient air temps that govern length of the growing season and virtually any place in western WA is very slow to warm in spring and quick to lose heat in fall. Generally we do best with short season crops here.

You're probably pretty similar if you're only a block off the water. The bottom of my garden is on the Sound.

At times we have a 12 degree temperature difference from here to town, which is a 10 minute drive and only a couple miles at most from the water. We're cooler in the summer and warmer in the winter here. That and my east facing sheltered garden with the terrace walls that retain heat are why I estimate my garden to be zone 9.

I love my honeysuckle. It's gorgeous, the hummingbirds go crazy for it, it fills the garden with fragrance, the bees love it - it's climbing on the fence. I'm on the Sound in Oly and it's never even rooted itself anywhere else in my garden. I just prune it lightly every couple of years. Perhaps it's a different variety?

Have had one for 20 years plus and never it has never reseeded or popped up somewhere else. So yes, location, location , location. But if there is the least chance of it being invasive in your yard, I would not plant it....not enough bang for your buck.

Olychick - very different :-) There are many different kinds of honeysuckles including vines, evergreen shrubs and even a groundcover. There is even a lovely red-orange flowered PNW native honeysuckle that can be found in open woodlands, Lonicera ciliosa. Most - not all - are very garden worthy plants and we are fortunate that none are considered invasive species in this area.

OK now I want that PNW native honeysuckle. I have a large section of open woodlands on my property and I'm always looking for native plants that make both the wildlife and me happy.

I am so in the habit of pulling out vines, though, I'd be worried I'd uproot it by accident.

The ones in the woods around me are just starting to bloom. If you look carefully, it's hard to miss that bright orange flower!!

I don't think we have them in our area. I've never seen that flower, and I think I'd remember it. But I'll keep an eye out just in case.

The flowers come and go quickly....but it is pretty widespread in the Puget Sound area, generally in more shaded locations that haven't been disturbed. It is all over Kitsap.

If you can find some, take some cuttings. Mature plants are hard to re-establish. Or note where it is growing and collect berries later.

I spotted a blooming Lonicera ciliosa growing on a Thuja plicata over a north facing bluff at my place. There are several plants in that area.