Plant & Weed ID Megathread

mrmorgan · 11-07-2022 08:30PM

https://www.boards.ie/discussion/comment/119323664#Comment_119323664

Brilliant, thanks very much

freida · 12-07-2022 12:34PM

Just wondering if anyone can identify this plant/weed. Thanks

12-07-2022 12:40PM

This is Malva sylvestris, Common Mallow

freida · 12-07-2022 07:30PM

Thank you. I didn't plant it. Must have seeded itself.

Fern Bench · 16-07-2022 07:30AM

Do you mean 100 ml of neat roundup or mixed with water?

Jim_Hodge · 16-07-2022 07:33AM

https://www.boards.ie/discussion/comment/119344363#Comment_119344363

For what? And you'd never use neat Round-up.

Fern Bench · 16-07-2022 07:37AM

Sorry I meant to quote The Continental Op's instructions a page or two back about the homemade wallpaper paste roundup gel mix, that's what I was referring to.

The Continental Op · 16-07-2022 09:00AM

https://www.boards.ie/discussion/comment/119344393#Comment_119344393

I use a 5:1 mix, water : glyphosate. Firstly I say glyphosate as Roundup, Gallup etc are nearly all the same when it comes to the glyphosate content. Glambia will still sell Roundup to the general public but not bigger than 2 liters. Secondly that is a very strong mix which I used to use on tiny bits of Japanese Knotweed that came up around the place - it worked on the Japanese Knotweed. I also use it with good effect on bindweed and docks. Over the years the amount of glyphosate crept up in the mix to deal with the Japanese Knotweed so I suspect I'm over doing it.

The normal strong knapsack mix for glyphosate is 40:1 (25ml glyphosate in a liter of water, technically thats the highest 5 liters per hectare rate) so you can see 5:1 is very strong. You could easily cut it down to 20:1. So 50ml of glyphosate in 500ml water. Don't forget you aren't painting the hole plant in the same way you'd spay the whole plant. With waist high bindweed I like to get the growing point and 3 full grown leaves with a dab from a 1 inch paint brush which I have found works well.

The glyphosate I'm referring too is the formulation that is fairly standard and has 360g/L glyphosate per liter, Gallup 360, Roundup Pro Active, etc. It always says how much active ingredient on the label.

looksee · 16-07-2022 09:49AM

Owing to my confused lifestyle (moving house twice in two years three years ago) I found I had a large sprayer of commercially premixed roundup that must be 4 years old, maybe more, I don't use it very often, so I tried it on a path that had grown a fair crop of rather sad weeds. It zapped them! I don't know what the shelf life for premix is supposed to be, but its longer than I would have guessed.

accensi0n · 17-07-2022 07:06PM

Anyone know what this is. Plant app says tomato but I don't remember planting any.

New Home · 17-07-2022 07:09PM

Definitely tomato. There may have been seeds in the compost. If you want to be sure, rub the leaves, the scent is a definite give-away.

The Continental Op · 17-07-2022 08:59PM

I'm not suggesting anyone is taking a dump in your garden but its well know that tomato seeds pass through the human gut unchanged and are still perfectly viable.

accensi0n · 18-07-2022 01:19PM

https://www.boards.ie/discussion/comment/119350929#Comment_119350929

Ah ok it makes sense now, it was me that planted it after all.

wildwillow · 18-07-2022 01:36PM

Tomatoes will very often self seed from a compost heap if you compost vegetable waste from the kitchen. I find them in odd parts of the garden and often get a few tomatoes. I pull them out if they are interfering with cherished plants.

The Continental Op · 18-07-2022 01:43PM

https://www.niwater.com/news-detail/10216/tomatoes-growing-in-sewage-works/ and more graphically ....

https://www.youtube.com/watch?v=Ni80nNwOET0

18-07-2022 03:58PM

Still a relict population of tomatoes on beaches/shingle around Claddagh and Renmore in Galway from the few unconnected drains in the city centre. Previously enormous quantities. I have seen Fennel around there too, so perhaps that propagates similarly.

The Continental Op · 18-07-2022 04:00PM

https://www.boards.ie/discussion/comment/119354831#Comment_119354831

Hmmm, that reminds me about 2 years back our local stony beach came up with a lot of tomatoes. A river runs down through the beach and at the time where the seeds came from didn't occur to me :-(

FazyLucker · 19-07-2022 07:30PM

Hi,

WhatsApp Image 2022-07-19 at 8.02.40 PM (1).jpeg

WhatsApp Image 2022-07-19 at 8.02.40 PM.jpeg

WhatsApp Image 2022-07-19 at 8.02.39 PM.jpeg

Can you help me to identify this weed? It seems to have spawned out of what I emptied out of my compost bin.

I never had this before and the contents of the bin haven't changed much so it is an odd one.

Pic attached.

The Continental Op · 19-07-2022 07:59PM

Mellon or marrow might even be a gourd of some sort.

Igotadose · 19-07-2022 08:00PM

Yeah, looks like courgette to me. Wish mine would come up via compost. This has been a lousy year for courgettes in my vegetable patch.

The Continental Op · 19-07-2022 08:22PM

https://www.boards.ie/discussion/comment/119361217#Comment_119361217

Those seedlings could be almost any member of the marrow family. OP just needs to think back to what they get in the shopping. I mentioned gourd as they get used as Christmas decorations then throw out. Another possible is squash.

looksee · 19-07-2022 08:26PM

I was wondering would you get viable seed from a thrown out cucumber or courgette. Meanwhile I have a massive potato growing out of the side of my compost bin. Not sure I fancy it!

The Continental Op · 19-07-2022 08:56PM

What often happens in our veg patch is that courgettes at the end of the season become massive marrows which end up on the compost heap and all those seeds are definitely viable.

I'd love to spray off the spuds growing in our compost bin but my wife won't let me :-( They came originally from peelings. You will get a really good crop out of your compost heap.

magicbastarder · 20-07-2022 07:14AM

i had thought they just looked like cotyledon leaves, so hard to identify? my first impression was i've seen beans look similar on first sprouting i think; and possibly sunflowers too?

The Continental Op · 20-07-2022 07:53AM

Did you look at the scale next to the beech(?) leaves in the compost? My response was just "gut" feeling and the leaf veins in the second picture sort of added to it. I've also seen marrow seeds come up in our compost for the reason I said above and they look very similar. I think what happens sometimes is the seeds survive even in really good compost because mice make a little food stores of them around the edge of the compost heap. Would be good if the OP grew them on a bit so we can see what develops.

I never though of sunflowers and they are another logical possibility as the big seed heads could easily end up on the compost heap at the end of the year.

Looking at the all the pictures again I'm still thinking courgette/marrow because of the veins on some of the leaves and what looks like hairiness on the true leaves as they emerge.

Igotadose · 20-07-2022 08:39AM

https://www.boards.ie/discussion/comment/119361332#Comment_119361332

having tasted potatoes from a compost bin... I'd agree. Yuck!

The Continental Op · 20-07-2022 09:00AM

https://www.boards.ie/discussion/comment/119362579#Comment_119362579

Why would they taste any different? I used to grow them in seaweed they were perfectly OK as are the ones off the compost heap.

Igotadose · 20-07-2022 09:01AM

https://www.boards.ie/discussion/comment/119362640#Comment_119362640

No idea, but it was the worst tasting potato I'd ever had. Probably because of the random swill I put into the composter. Doesn't seem to affect the other vegetables I raise on the compost though. Just plain nasty.

mojesius · 21-07-2022 01:37PM

PXL_20220721_123616126.jpg

Can someone please tell me if the flowery weed here is scarlet pimpernel? (Ignore the thistles).

Also, I'm in two minds whether to let it just take over this border between our lawn (lawn has everything growing in it so not too fussed if it gets in there) and driveway. I like the flower colours and it's a bit of a job trying to pull it out by hand and I don't really want to kill it with weedkiller but will if I have to.

Dumb question but what will happen if I just let it be? And if I let it be, would it prevent other (less attractive) weeds from growing? Thanks

The Continental Op · 21-07-2022 01:44PM

Looks like it to me but I've never seen much of it so wouldn't be 100%. What I am sure of is that to the middle left of the picture you have a nice healthy ragwort plant ;-)

Plant & Weed ID Megathread

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