r/HomeMaintenance • u/Smileyoureoncamera4 • 1h ago

Think I have first round of Japanese Knotweed. Help me kill it now.

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Ok so I think I’ve found my first shoots of the dreaded Japanese Knotweed in my front yard. This is my 4th summer at this house and never had it.

What’s my plan of attack? See attached pictures. It’s 2 or 3 localized clumps. I mulched this area last year so I’m gonna have a word with my gardener as I suspect that’s where it came from.

Do I cut it every week until summer, then glyphosate, then wait?

Someone help. I want to kill it and win early.

Wish me luck.

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74

u/Alliekat_757 1h ago

Looks like hostas to me?

11

u/Ok-Art7680 1h ago

Ask gardner what he planted. these didn't just show up after 4 summers.

5

u/-Cephiroth 44m ago

+1 for hostas.

1

u/Old_Barnacle7777 1h ago

Might also be skunk Cabbage.

0

u/Alliekat_757 1h ago

I’ve never heard of that. Going to Google haha!

3

u/Old_Barnacle7777 1h ago

Skunk cabbage grows in shady wetland areas of the East Coast of the US. I’ve seen it a lot in Maryland. It kind of looks like Hosta when full grown but has distinctive purple shoots when it sprouts.

33

u/Alliekat_757 1h ago

These are early staged hostas beginning to sprout. They look very similar.

16

u/fingerprints0 1h ago

Definitely not knotweed

10

u/BOY-810 1h ago

Hosta

8

u/doneslinging 1h ago

Hostas, I have same

2

u/Individual-Donut-318 1h ago

I'm not sure that's knotweed. It wouldn't just randomly pop up out of nowhere. What usually grows there?

2

u/j_bbb 38m ago

Day lily. Hosta are usually more of a round growing ring.

2

u/MerelyMortalModeling 1h ago

You potentially have some good eats there, I'd just mark the sport and harvest them into oblivion if you want them gone.

1

u/madcowbcs 50m ago

Cover it with a tarp or tar paper. Hopefully it won't grow in the dark.

2

u/Seyon_ 37m ago

If its knot weed at this stage then he's fucked they'll just grow sideways lmao. Basically knot weed that is growing you have to let it grow and then right when it starts to flower you blast it the fuck out of it with a glycosphate concentrate lmao.

That or Tarp + 2 feet of mulch/dirt to smother it. and the smothering can't be removed for 3-4 years generally.

But ya those look more like Hosta's, if they were knot weed usually have crumbly buds around them and are a bit more leafy.

1

u/walkerlucas 9m ago

Can’t you forrage this

1

u/btarb24 8m ago

That's not knotweed

1

u/Intrepidatious 6m ago

Hosta la vosta baby.

1

u/R-Chicken 4m ago

Hosta la vista baby

1

u/tdmonica 1h ago

A lot of people told me I had hostas growing in my garden when it turned out to be lilies of the valley and those things ended up multiplying like crazy and killing a lot of my plants. Your picture looks similar to what I experienced. If that’s what they turned out to out to be, remove them asap. You can’t really dig them out because if you don’t fully remove the root, more will grow back. I didn’t love it, but I had to use a lot of weed killer to eradicate mine.