Tipuana tipu, the most invasive weed I know and very hard to kill, closely followed by cannas. Not to mention the good old queen palm of course, I dig and dump them in the 100s.

Tipuana tipu, "Pride of Bolivia," is on my city's list of desirable trees.  I haven't seen seedlings, unlike for Cupaniopsis, which would turn my yard into a thicket, given the opportunity.  We have one native Canna.  27.6º N.

Morning Glory ... not sure which genus are around here, but they're a rampant runner and very persistent. My neighbor planted some intentionally ... ugh!

Cheers, Barrie.

On ‎4‎/‎19‎/‎2016‎ ‎2‎:‎20‎:‎22‎, DoomsDave said:

It IS pretty!

And, I'll take your word, evil. (I'd buy it. Once.)

Just like the Mexican Primrose.

Evil, too. Go ahead, treat yourself to a blood-curdling, lung-emptying, eardrum-piercing scream.

 

Those are a native South Texas wildflower here called Pink Evening Primrose.  My father grew up calling them Buttercups.

The Brazilian Pepper is really taking over a lot of area around here too.  I have part of one I am dealing with at the back corner of my yard, but 3/4 of it is on the high school property on the other side of my fence.  I have a friend who is the Chairman of the Palm Society of South Texas and he is an administrator at the high school.  He told me the other day to go on the school property and cut down the Brazilian Pepper and replace it with one of my Banyans I have in a pot so I can still have a north wind break in the winter that the Brazilian Pepper was providing.  I think I will do that, but wish the school groundskeepers would do the work of getting rid of the Pepper tree, but without any harmful chemicals like Round Up.  PLEASE PEOPLE, DO NOT USE ROUND UP OR ANY SIMILAR PRODUCT!  IT IS EXTREMELY HARMFUL TO US AND THE ENVIRONMENT DESPITE WHAT MONSANTO WANTS YOU TO BELIEVE!

On April 19, 2016 at 1:12:37 PM, Las Palmas Norte said:

English Ivy ... I can't belief nurseries are permitted to sell it.

 

Cheers, Barrie.

YES!!!! I'm dealing with this crap now and I didn't even plant it. Also snail flower is running all over. Another one I didn't plant. 

Pampas grass? I just planted one. Maybe a mistake? Lol 

Ailanthus altissima. I have this tree in my old garden and every years i must kill hundreds of small trees, growing in every places.

Don't forget about stinkweed

Triadica sebifera, also known as Sapium sebiferum, is commonly known as the Popcorn Tree...........This is probably our worst one up here in the cold north. Have to drill and fill with a combination of salt and motor oil.....repeatedly.

But they shore are purdy.

 

10 hours ago, Brad Mondel said:

Pampas grass? I just planted one. Maybe a mistake? Lol 

yeah, definitely pampas grass, was invading my yard from the neighboring open space 

you are best digging it up now while you have a chance

i spent close to a week digging up one over christmas (you have to go under it), then gave it three rounds of roundup to finally kill it off

 

http://www.sandiegouniontribune.com/news/2009/may/03/1mc3pampas233036-campaign-launched-against-pampas-/

Does it seed and spread around the area? I've seen Pampas grass in many situations here in the PNW and beyond it getting bigger than some folks expect, I've not seen it become invasive ... at least here anyway.

 

Cheers, Barrie. 

2 hours ago, Monòver said:

Ailanthus altissima. I have this tree in my old garden and every years i must kill hundreds of small trees, growing in every places.

 

Reminds me of Oregon (Big Leaf) Maple - Acer macrophyllim. I swear every one of the tens of thousands of seeds germinate.

I'd take it down but I just spent $1,100 getting a Eucalyptus nitens taken down.   Cheers, Barrie.

Edited April 25, 201610 yr by Las Palmas Norte

The African Tulip tree (Spathodea campanula) is my number one weed. Please come and take all you want!

4 hours ago, Monòver said:

Ailanthus altissima. I have this tree in my old garden and every years i must kill hundreds of small trees, growing in every places.

Like the California Pepper tree

 

 

2 hours ago, Las Palmas Norte said:

Does it seed and spread around the area? I've seen Pampas grass in many situations here in the PNW and beyond it getting bigger than some folks expect, I've not seen it become invasive ... at least here anyway.

 

Cheers, Barrie. 

Definitely does here in San Diego, there are bunches of it growing all over the open space behind my house, with more every year

Rhapsis! Never thought I'd consider a palm an invasive weed. My neighbor planted them along our fence line years ago. They don't irrigate so now that I do, they are creeping into my yard taking over my beds. Add cherry laurel to the list too. Suckers galore. I do recognize that they do have a place in the wild for their bird benefits. 

Edited April 26, 201610 yr by junglegalfla

Bermuda grass 

Alicehunter2000's photo is of something other than Triadica sebifera (Chinese tallow), which is a member of the euphorbia family; the photo looks like a cherry.  Of course "Bradford" or callery pears have become problems up there.  Chinese tallow is a terrible invader in northern Florida.  It snuck up.  One fall in the late 1990s, it seemed that every moist deciduous forest in Jacksonville had a blazing orange understory.   All tallow.  

Rhapis are odd.  They can be a pain to transplant and get established and might languish for years, then once they're happy, they send underground stems to go exploring.  At Heathcote Botanical Gardens in Ft. Pierce, Florida, the Rhapis colonies intrude on other plants.  I've had to cut them away from Chamaedorea, cycads, Copernicia, and more.  

On 25/4/2016 18:56:26, Monòver said:

Ailanthus altissima. I have this tree in my old garden and every years i must kill hundreds of small trees, growing in every places.

That's a f**cking pain in the ass. In my area, a removal project was made several years ago by the Ministry of Agriculture, Food and Environment (Magrama) but it was usless. I don't understand why don't remove all of them and why the law is so soft letting nurseries continuing selling this junk (yes, last weekend I went to the local nursery and I saw this species with other invasive ones like Acacias).

I leave a link of the invasive species of Spain if someone want to take it a look:

 http://www.magrama.gob.es/es/biodiversidad/temas/conservacion-de-especies/especies-exoticas-invasoras/ce_eei_flora.aspx

23 hours ago, Cindy Adair said:

The African Tulip tree (Spathodea campanula) is my number one weed. Please come and take all you want!

Here is the innocent looking tree. The orange blooms are lovely but not all the volunteers! This one sprout from each small piece of wood. At least no thorns and it is not a vine nor caustic or poisonous. 

On 4/19/2016, 2:20:22, DoomsDave said:

It IS pretty!

And, I'll take your word, evil. (I'd buy it. Once.)

Just like the Mexican Primrose.

Evil, too. Go ahead, treat yourself to a blood-curdling, lung-emptying, eardrum-piercing scream.

 

Ha.  That's a native wildflower all over the southern US plains, down into Texas.  Not invasive at all - here in its habitat.

Just shows how some plants can go nuts when they leave home.

Never heard it called "Mexican" primrose. Usually pink primrose or "evening" primrose (not sure why).

On 4/19/2016, 8:05:34, Laaz said:

The worst one in this area is Mexican petunia (Ruellia brittoniana). Invasive as hell & a nightmare to kill...

 

 

cant get rid of that crap out here in AZ either once its taken hold. no water, sprayed, dug up-just keeps coming back

Mexican Petunia I have growing at my lake house in north Texas but I don't have a problem because the Deer keep eating them down to nub! 

On 25.04.2016. 18:56:26, Monòver said:

Ailanthus altissima. I have this tree in my old garden and every years i must kill hundreds of small trees, growing in every places.

Yes, this.

That is the most invasive tree here too.

On ‎4‎/‎25‎/‎2016‎ ‎1‎:‎49‎:‎27‎, Alicehunter2000 said:

Triadica sebifera, also known as Sapium sebiferum, is commonly known as the Popcorn Tree...........This is probably our worst one up here in the cold north. Have to drill and fill with a combination of salt and motor oil.....repeatedly.

But they shore are purdy.

 

Is this the same species as "Chinese Tallowtree"?  We have them in the Orlando area and despite being non-native and somewhat invasive, they can produce really attractive autumn coloration in this area certain years.  The trees in the photo above look like a flowering cherry/pear/plum, etc.  I have never seen a Chinese Tallow tree, or "Florida aspen" put on a display like that.

I wish we had more trees that would put on a spring display like that here.  I guess one can't have it all.  At least we have yellow and pink Tabebuia and a few sickly dogwoods and redbuds.

Arum lily Zantedeschia aethiopica .  Absolute nightmare here.

 

Triadica sebifera, also known as Sapium sebiferum, is commonly known as the Chinese tallow, Chinese tallowtree, Florida aspen, chicken tree, gray popcorn tree, and candleberry tree. The tree is native to eastern Asia, and is most commonly associated with eastern China, Taiwan, and Japan.

Triadica sebifera - Wikipedia, the free encyclopedia

 

Yes....they do put out some nice Autumn colors too.......Really Invasive here