Invasive Plants have gotten loose in your garden

oxeye daisys are on the noxious weed list. Best not to encourage them.

Galega - check the other posts and threads; somwhere in there there's a link posted by Pixydish to a great article that explains how to get rid of horsetail.

Lamium 'Archangel' isn't a native, though it acts like it is. I would pull it at any chance you get.

I'm finding that daisies (leucanthemum) is a bit like ivy. You can't just pull them up and toss them because they'll root where they are . . .

Kathy

katie59 - This has red foliage with yellow flowers. It is actually kind of attractive but very invasive and prolific. Oxalis or clover, I'm not sure.
I have found blackberries don't grow in a bamboo forest. (Pick your poison?)

Actually, I just looked up Oxeye - it's not them - different leaf shape. I'll keep looking.

Thanks, Katie - I will look for Pixydish's article on horsetail.

The lamium is really baffling. Maybe birds planted it since the lot it is coming up from is 5 acres and vacant surrounded by other vacant wooded properties. I'll keep it out though, since I don't need any more battles around here! Here's a photo of it creeping onto the property...

LOL, I would call that an onslaught!

Yup. That's a picture of archangel . . .

Azorina, I'm going to guess that that's a clover. Interesting about the bamboo and blackberries. If it doesn't let the blackberries grow, then our natives have no chance!!

I'm late as usual...
Bishop's Weed... definitely! I didn't plant it, the former owner did.
Columbine... the kind I have, the flower is not worth the mass amounts of seedlings I have to pull to keep it in check. Again, former home owner's idea.
Larkspur - my own fault... it is EVERYWHERE in my backyard. I am pulling it all over my raised veggie bed.
Blue forget-me-nots - Everywhere, and they look weedy in most places (maybe too much sun?). The pink ones I have stay in one bed, and are full of flowers and pretty.
Borage - my own fault. Its everywhere. At least its easy to pull... as long as you have gloves on.

Uh oh. Borage is a prolific self-seeder? I just bought some for the pretty flowers . . .

Not sure if there are many different types of Borage, but I got it in an herb pack of Burpee seeds, I think it is Borage officinalis or something like that, and yep, I direct sowed it last year, it had real pretty flowers, was very nice (except I had it in too much shade, so it flopped a bit), then went to seed, and I still have seedlings popping up ALL OVER the herb bed, plus around the outside of it, in the rocks. Not too hard to pull as long as its small, and it is a real pretty flower. Never did use it in anything culinary, but I guess it is good in certain cold drinks or something?

By the way, if you want anymore don't buy it, I have lots of seedlings for ya! Here is my herb bed last year, with the big borage plants in the back. I have a few seedlings that I let go to get big this year, but might pull them pretty soon, just to keep it under control.

Okay. Good to know. Thank you!!

That red 'clover' with the yellow flowers may be 'black medic'. It is a very invasive weed. You must get down with a weeder and pull up the main root. Pulling it off the top will not kill it.

Here's what it looks like:

http://www.missouriplants.com/Yellowalt/Medicago_lupulina_page.html

The map on the USDA site says it occurs in all states and in almost all provinces in Canada:

http://plants.usda.gov/java/profile?symbol=MELU

I think this is probably the weed that Azorina was referring to. I think some kind of oxalis? Linda I still have a bit here and there, but don't THINK you got it from me! I have it over in EWA where it is even happier and seem to recall I had it back in Minnesota a long time ago.

That's a nice little oxalis. Is it golden/brown/yellow I lost over the winter two beautiful purple-flowered and white-flowered oxalis I'd had in a contain for years.:-)

There is a native oxalis: http://www.wnps.org/plants/oxalis_oregona.html. Some hate it because it's successfull. I like it under mature evergreens.

No, no, Kathy, this one is a weed. And it spreads like crazy. Guess my photo was deceiving. I will take a pic of the even happier ones when I go over to EWA this weekend and post that when I get back. (Horror! 3 days without the internet. I will be weeks behind on threads by the time we get back.)

It's prettier, methinks than the clover I have in my "meadow" . . .

It is 'black medic'.

Is it the same? Sharon, take a look of the picture I posted of black medic (such a strange name) a couple posts above.

At least that is what I thought they were talking about when they said 'black medic'.

Who has a copy of the Northwest Weed Book?

Kathy, I just can't see that it is the same as black medic. I have none that are flowering yet, (thank goodness) but will send pics after the weekend of the ones in the hotter clime.
Guess Azorina hasn't been on line for a bit as I was expecting to hear from her on this, too.

Sharon, that is the weed I was referring to and it may have come from a nursery.....Sometimes I do find weird weeds in plants I buy.

Kathy posted a great link to native plants on a seperate thread, and I think (can't remember exactly how the flower looks) that it was one of the variety of oxalis listed there. I have both this and the black medic in my yard (found the bm tonight as a mater of fact, and was so proud of myself that I knew what it was!). The flowers on the oxalis are single, while the bm is kind of like a small cluster. Both nasty if you ask me!

And I have clover in my meadow/lawn, but I think it's different than this . . .

You and I are on the same track, Linda. Fortunately for me, the stuff seems to like the sunnier locations, so it is limited to just a few of my beds.

Kathy, I also have quite a bit of clover, don't mind it in the meadow or lawn too much but sure hate it when it moves into a flower bed.

I'm a johnny-come-lately to the thread but my vote for most hated plant is the mountain ash tree, the kind with orange berries. What a mess! Plus, every seed appears to germinate with ease. It's worse than the big leafed maple. At least the maple tree is a lovely tree and the leaves are so good for the soil. So far, I am loathe to find anything good about this mountain ash tree.

The robin's love the berries. And if you make it into a shrub, it can be nice if you have room for it. I would think it will soon be on the noxious list, unless it's native.

What's the little white daisy that grows in the grass? It's all over down here . . .

English daisies? White with red or pink?

White with yellow, I think . . . They look like a daisy, but are the same heighth as clover, too low for the mower to catch them.

Need a picture?

I'll try to remember to get a picture tomorrow morning when I'm out there. My SIL has a nice stand of Freesia in bloom, too. Mmmmmm, smells so sweet. I didn't know they were hardy here.

Add several of the Alluims such as "Wild Hair"
Arum Italium. plant one and you 10,000 seems overnight
Some of the Campanulas
Perennal Bachelor Buttons

And ditto on the others.

I finally had to pull all the Monte's

D

http://www.romencegardens.com/index.cfm?fuseaction=plants.plantDetail&plant_id=1797&typeID=27

This one? I like the looks of it, though.

I found this beautiful plant in Canada and brought it home and planted it. It loved the clay I put it in and thrived. I was bragging to a Canada DGer and they told me that it was called "Mile a minute" plant and that I should pull it immediatly. Reluctantly I did and dug all of the soil for the last 3 years and finally got the area free......wait is that another one?
I eliminated 'bishops weed' and it only took 2 years of digging it up and leaving the area blank. We have a little strangle weed here in Montana that keeps appearing deep to many plants and has some allographic (sp) effect and kills others. The only way we can get it is to dig the entire area around it and hope for the best.
Right now "Bee balm" is getting a little aggressive with the plants on its perimeters.

I wish the web sites that sell these plants would have a warning that it could get out of control and which zones that might happen in. Being the newbie to gardening that I am, when I moved into my house I bought some Queen Anne's Lace seeds but thankfully I found out that they are invasive in our area. The funny thing is, I didn't know how to get rid of them so they are still in a baggie in my freezer!

Hee-hee, Judi. I actually dug up a plant by the roadside at my brother's once. I love them so, despite their invasiveness. I just pull them out where I don't want them and try to deadhead as much as I can. ^_^

I thought about that but decided that the wind would be their vehicle. They are a problem here in the Portland area. I do think they are pretty, but there are so many other things to plant! But how do I get rid of the seeds? It looks like I keep contraband seeds in my freezer!

I think I would trash them.

What if they get out in a landfill? The wind will find them and the whole PNW will be covered and the authorities will hunt me down and some seeds will blow onto ships on the Columbia River and will end up in foreign lands and I will be on the "no fly" list as a plant terrorist.