Lily of the valley, to continue the rhizomal trend (and different from true lilies)
What is this thing?
Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
I'll second this. It grows in early spring, the stem will "split" into two large leaves and a stem with white little bell-like flowers, and later red berries.
Very common in the entirety of Sweden iirc, my mom used to pick a small bouquet every spring which she would put in a glass of water.
It's very pretty and smells wonderful, but the entire plant is poisonous so be sure to wash your hands after touching it.
bamboo
I'm not an expert on plants but this is definitely no beech, maple, oak or cedar.
I second the opinion of the bamboo. I know you said there are no bamboo in your area but if you mulched or added fertilizer sometimes you get seeds and/or roots of plants with it.
Edit: mulch or fertilizer bought from a store, not the home made variety.
Because I’m in an area with no Spanish slugs (yet) which terrorise most gardens, i have never brought in any organic matter. Nor is it very common to grow bamboo in Sweden afaik.
I’m so confident its Not bamboo I will disregard the previous advice to rip it out so we can find out.
Have you got any native type of cane in Sweden? This really looks like something very close to cane or bamboo. Search for images of their sprouts online, compare with any other tree. Not even palm trees look like this when sprouting.
Looking forward to your update on this once you know what it is

Its grown a bit since i took the op photo.
Looks like Griffith's spurge, leaves don't look as sharp though, perhaps it's some other Euphorbia. Doesn't look thick enough to be Asparagus, I'm no expert though
Yea doesn’t look quite right. Japanese knotweed is another similar one, but I’ve never had it here either. Its also still very early in the spring, nighttime is 2-4c so most plants are still dormant. So I don’t think its anything exotic.
That looks a lot like bamboo.
Dig it out before it takes hold, lest you have a new forest in 2 years.
Theres never been bamboo around here afaik, nor have i brought any plants or soils in from elsewhere.
I really doubt it is bamboo but thanks for the guess!
It's a flower of some sort and certainly not bamboo. I've seen shoots like that quite a few times, but couldn't put my finger on what flower it is.
I uploaded the image into a plant identifier and the returns were mostly orchids.
Yea i tried PlantNet too but theres not enough plant to ID. It just keeps suggesting ginger.
I say let it grow and find out. Bamboo isn't some kind of unkillable super monster, no harm to leave it in case it's a pretty flower.
Could it be a Yukka plant?
Very much doubt it, its not really something that grows around here. Good guess tho the sprouts look quite similar!
Kind of looks like a bamboo shoot.
Bamboo or sugar cane?
Never seen sugar cane growing in Sweden. Never had that or bamboo here so i doubt it is either. Perhaps there are relatives native to my area. But thanks for sharing your guess!
I have something very similar in one of my garden beds, but I can't remember what it is! I actually have a similar picture in my plantnet gallery from April 11th last year, so I am quite sure it is a perennial, as I also have it in my garden bed this spring, so if I were you I wouldn't dig it up yet.
Edit:
Is there a chance that it could be a Lily?
The spot used to be a gravel patch overgrown by forest offshoots, mostly maple root sprouts, which I cut down early spring last year, cardboarded and covered. This is on the very edge which is why i suspected a root growth or something creeeping in.
Most guesses so far have been rhizomal species, which all appear to have similar asparagus looking sprouts. The lily sprout looks similar too but there’s multiple differences, thus i don’t think this is it.
Thanks for guessing!

Bamboo. Gotta dig up the root, pour glyphosate on the cut root, or for short term, white vinegar.
Glyphosates have no place in nature. Id rather my whole farm overrun by bamboo before i poison it. Besides, there is no bamboo anywhere in my area and i haven’t brought in any organic materials from elsewhere.
Just relaying info as I encountered it recently. I'm no gardener or farmer. Obviously digging it up is best and most effective, but the option is there. I was eradicating around a patio in a overrun garden to keep mosquito population down.