Forum menu
Is this knot weed o...
 

[Closed] Is this knot weed of the bad veriety ?

Posts: 15555
Full Member
Topic starter
 

It's about 5 foot tall.

Just spotted near me. Thanks for any replies.


 
Posted : 20/08/2019 12:15 am
Posts: 9010
Free Member
 

Not knot weed, and don't think it's giant hogweed.


 
Posted : 20/08/2019 12:17 am
Posts: 15555
Full Member
Topic starter
 

Hog weed, sorry!


 
Posted : 20/08/2019 12:19 am
Posts: 15555
Full Member
Topic starter
 

Looks a bit like it though, shall I just chop it down?


 
Posted : 20/08/2019 12:20 am
Posts: 1310
Full Member
 

That's not giant hogweed, you're fine. And if you ever get Japanese knotweed, don't try and cut it down yourself. You'll only make it worse. Get a professional and reputable contractor.


 
Posted : 20/08/2019 12:38 am
Posts: 0
Free Member
 

It's cow parsley.


 
Posted : 20/08/2019 6:53 am
Posts: 12904
Free Member
 

Giant hogweed is huge

Like stand back look up and think "**** me thats a big plant" the leaves are big and take the form of a sort of ragged rhubarb. It really does go out its way to loom and make itself look ominous to approach.

The stem is green a purple speckled.

Not giant hogweed is big but not so you think "wow its going to eat me" its stem is more consistently purple.

Knotweed is a different thing. Not dangerous infact its edible but its a bastard to get rid of and can be destructive. But its manageable and not the death sentence some people suggest if you don't ignore it.


 
Posted : 20/08/2019 7:38 am
Posts: 2997
Full Member
 

It’s cow parsley.

No it's not, it's fennel.


 
Posted : 20/08/2019 7:46 am
Posts: 3594
Free Member
 

Looks like Cow Parsley to me, not Fennel (does it have little frond type leaves? If so, give them a rub and see if they smell of aniseed, if they do, it's fennel)
Either way, that's neither giant Hogweed nor Japanese Knotweed.
As above, giant Hogweed is genuinely giant. Like, massive.


 
Posted : 20/08/2019 8:48 am
Posts: 26879
Full Member
 

Doesnt look like cow parley or hog weed, umbellifers are a bit tricky, I would need to see the leaves.


 
Posted : 20/08/2019 9:00 am
Posts: 1359
Full Member
 

The test for Giant Hogweed is rub some sap on you and go sunbathing.


 
Posted : 20/08/2019 9:25 am
Posts: 0
Free Member
 

Used to love slicing the big hogweed as kids. Had to watch out for the sap when lower down the stem though as it used to pool.


 
Posted : 20/08/2019 11:45 am
Posts: 2997
Full Member
 

it's fennel


 
Posted : 20/08/2019 11:48 am
Posts: 7095
Free Member
 

The test for Giant Hogweed is rub some sap on you and go sunbathing.

Our nipper picked up a rash much like this stuff produced, it lasted for weeks 🙁


 
Posted : 20/08/2019 11:50 am
 Drac
Posts: 50576
 

That ain’t knot weed, giant hogweed or fennel.

Giant Hogweed burns it doesn’t cause a rash.


 
Posted : 20/08/2019 11:54 am
Posts: 1930
Free Member
 

Looks like cow parsley to me too.

Giant Hogweed doesn't burn - it renders the skin photosensitive so that sun light can cause serious burns from little exposure.


 
Posted : 20/08/2019 1:15 pm
 Drac
Posts: 50576
 

Yes that’s exactly how it burns derek.


 
Posted : 20/08/2019 1:18 pm
Posts: 1583
Free Member
 

Giant hogweed can be much smaller than you expect, identify it by having a look on the stem, little red dots by the hairs is what your looking for. But as above, doubt you have GH there...


 
Posted : 20/08/2019 1:23 pm
Posts: 12904
Free Member
 

Our nipper picked up a rash much like this stuff produced, it lasted for weeks 🙁

You may ofcourse already kniw this.

But you need to keep the area protected it can leave you photosensitive for ages.


 
Posted : 20/08/2019 1:43 pm
Posts: 26879
Full Member
 

Giant hogweed can be much smaller than you expect, identify it by having a look on the stem, little red dots by the hairs is what your looking for

Indeed, but I thought the red dots only become visible when it gets bigger?

Its also worth noting normal hogweed can cause blistering too, in fact all Heracleum species do I think


 
Posted : 20/08/2019 2:00 pm
 Drac
Posts: 50576
 

The leaves on giant hogweed are pointy  a bit like a milk thistle.


 
Posted : 20/08/2019 2:47 pm
Posts: 2997
Full Member
 

it's still fennel


 
Posted : 20/08/2019 2:53 pm
 Drac
Posts: 50576
 

Fennel has yellow flowers.


 
Posted : 20/08/2019 2:54 pm
Posts: 2728
Free Member
 

its not knotweed as was mentioned already, but if you or anyone does get knotweed a strong mix of sbk brushweed killer knocks it on the head.


 
Posted : 20/08/2019 2:57 pm
Posts: 2997
Full Member
 

Fennel has yellow flowers.

sometimes.

the fennel in my garden looks exactly like that even to how the wilted old flower stems are decaying back.


 
Posted : 20/08/2019 3:03 pm
Posts: 0
Free Member
 

Actually, now that I've bothered to look at the leaves it does indeed look like fennel. Does it smell of dill or fennel or neither?


 
Posted : 20/08/2019 7:25 pm
 Drac
Posts: 50576
 

Oh bugger! Yeah those look like fennel leaves.


 
Posted : 20/08/2019 7:28 pm
 beej
Posts: 4202
Full Member
 

Dig up the root, confit in olive oil, eat.

Is it tasty? Fennel
Have you died? Not fennel.


 
Posted : 20/08/2019 8:11 pm
Posts: 13554
Free Member
 

It’s about 5 foot tall.

Just spotted near me. Thanks for any replies.

That’ll be Tom Cruise


 
Posted : 20/08/2019 8:52 pm
Posts: 0
Free Member
 

Funkmasterp wins t'interweb today


 
Posted : 20/08/2019 10:19 pm
Posts: 13640
Free Member
 

Needs moar Genesis


 
Posted : 20/08/2019 10:25 pm
Posts: 9592
Full Member
 

It's a plant from the umbellifer family.

Not sure which one it is, however they are really good for insects.


 
Posted : 21/08/2019 10:02 am
Posts: 1980
Full Member
 

Bruce's partner who is botanically obsessed says it's probably fennel (feathery leaves) and the reason that the flowers are not yellow is that they are the seed heads. Hog weed has very different leaves.


 
Posted : 21/08/2019 11:08 am
Posts: 7095
Free Member
 

You may ofcourse already kniw this.

But you need to keep the area protected it can leave you photosensitive for ages

I do now (and have done for a while), but unfortunately we didn't twig at the time that it might be a hogweed type thing as we don't have hogweed (although we do have carrots and a slightly blue leaved thing that my wife insists is a decorative plant, might be common rue, both of which I since discover can cause this).

Despite completely missing all that, he was mostly in long sleeve tops for a short while after.


 
Posted : 21/08/2019 11:15 am
Posts: 9592
Full Member
 

Fennel is part of the carrot family.


 
Posted : 21/08/2019 3:41 pm
 Nico
Posts: 4
Free Member
 

Cow parsley flowers in the spring and early summer, so not that. Could be fennel but it could be something else. They are all* in the carrot family (umbelliferae) but so is hemlock and hemlock water dropwort. Lots of wild carrot coming into flower now on the downs. And wild parsnip.

* excluding Japanese knotweed which is very different.


 
Posted : 21/08/2019 6:44 pm
 Drac
Posts: 50576
 

Still a lot of cow parsley around here in flower it's dying off though but Twodogs may be right once I also paid attention to the leaves.


 
Posted : 21/08/2019 6:51 pm
Posts: 26879
Full Member
 

although we do have carrots and a slightly blue leaved thing that my wife insists is a decorative plant, might be common rue, both of which I since discover can cause this)

Do they really, i didnt know this. I often scrunch up and sniff wild carrot flowers, love the smell!!


 
Posted : 21/08/2019 6:58 pm
Posts: 1316
Full Member
 

Definitely fennel, but get somebody else to eat it first.


 
Posted : 21/08/2019 7:21 pm
 Jamz
Posts: 808
Free Member
 

It won't be cow parsley unless you're in the southern hemisphere. Upright hedge parsley is still going currently - it takes over after cow parsley (along with hogweed - non giant kind) as the dominant umbellifer in most parts of the UK.

I agree probably fennel for the OP.


 
Posted : 21/08/2019 9:35 pm