Questions tagged [weeds]

For questions about plants growing where they aren't wanted.

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4
votes
2answers
352 views

What is this tall, vigorous weed?

I've got thousands of these coming up in my yard. In shady spots, this weed is not as big. In areas with full sun, it's huge. Click on photo for full size They have short roots and pull out of the ...
4
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2answers
2k views

Can anyone tell me what this red stemmed weed is?

It is low to the ground and is all over the borders.
4
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2answers
2k views

Are spreading spider plants a problem?

Spider plants have jumped from pots into the yard, and are spreading fairly rapidly across the shady portions, near the south fence. Will these become a problem in the future, or can I regard them as ...
4
votes
2answers
121 views

Identify this quickly spreading plant

It is moving into my perennial garden from the woods and I would like to know if I should try to get rid of it or will in grow and allow my perennials to survive. Can I get rid of it? It is moving ...
4
votes
1answer
398 views

What is the term for removing weeds from bodies of water?

A control technique before planting aquatic plants in water bodies is to remove existing water weeds. I've heard of this being called "uprooting" or "cutting" the weeds. What's the proper term?
4
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4answers
7k views

How soon can I apply pre-emergent herbicide after a dormant overseeding?

I live in Ohio and I dormant overseeded in early January. So far, it has worked wonderfully. A lot of the new seed is coming up but some weeds have started to germinate as well. I normally put down ...
4
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1answer
1k views

How do I kill these weeds in my lawn?

I am not able to kill these weeds in my garden. Click on any image for full size
4
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1answer
261 views

Weed in Massachusetts: underground roots, skunky smell when bruised

We've had our house for a couple of decades, and every time I neglect the back yard (more often than I should) this weed pops up all over the place: It has a skunky smell when bruised, grows from a ...
4
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1answer
86 views

What type of weed is this and what is an effective way of removing it?

This weed kind of took over my front yard (around 300 sq ft). I'd like to remove it all and then mulch most of the area What type of weed is it and what would be an effective way of removing it? In ...
4
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1answer
424 views

What is this succulent/weed growing on my lawn?

We've had it growing in our backyard lawn for a while and the patch gets bigger every year. Its definitely in the succulent family but I can't find any other information on it. We live in West ...
4
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1answer
144 views

Identification of white flower with four petals

Just wondering what this is. Found it in an old pot out back and not sure if I should toss or save. TIA
4
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1answer
390 views

Help identifying a weed/unwanted plant that pops up all over and unchecked, grows into a tree!

Per the title really. It seems to be quite invasive and pops up all over the place, often entangled into the centre of an existing shrub It's a pain to dig out but it can be done It's quite (but not ...
4
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1answer
2k views

What is this prickly weed found in Pennsylvania?

What is the name of this plant?
4
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1answer
134 views

Can someone identify this weed?

It has been sprouting all over my garden and seems extremely hard to kill. I've been trying to look up information on it but nobody in the area seems to know the name, even though it seems to be ...
4
votes
1answer
610 views

What is this vine with heart-shaped leaves found in Northern California?

My neighbor's vine is poking through the fence. I first caught it trying to choke one of my roses. I cut it away and it's now poking through the fence again. The leaves are heart shaped when you ...
4
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2answers
373 views

Is this a horseweed?

I am trying to figure out what type of weed this is. I was thinking horseweed but the more I look at it the less I think so. This is a picture of young plants. It is growing in New Hampshire in an ...
4
votes
1answer
138 views

What is this low-growing weed with narrow stems and yellow flowers, and how do I exterminate it?

My lawn is "Blue Couch" (Digitaria didactyla). It's a pretty hardy grass and tolerates most weed killers that you can use on couch grass (Cynodon dactylon, Bermuda). What is this creeping weed that ...
4
votes
1answer
398 views

How can I control umbrella grass?

How can I get rid of my umbrella grass (papyrus, Cyperus alternifolius) completely? Will glyphosate kill it? Or do I have to dig it out? I've cut it to the ground. It was taking over too much space.
4
votes
1answer
537 views

Is this poison sumac?

Was just pulling this stuff out of the ground all over my back yard, and then got suspicious about the red leaves.
4
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1answer
620 views

What is this variegated low-growing plant with purple flowers, and how do I get rid of it?

I'm not even sure this is considered a weed, but it seems to be taking over a flower bed, so, I'll treat it as one. On my neighbors' front garden, it completely took over. The ground is somewhat ...
4
votes
3answers
102 views

How should I remove the wild greenery in my pots before transplanting flowers or herbs?

I have five big concrete pots with soil in them. Some have wild greenery of some kind and the others have moss. Should I just till the soil and turn the surface over, or should I do something to ...
4
votes
1answer
81 views

How to keep elm shoots away from raised bed garden

I'm about to plant a keyhole garden. The ideal site is just a foot or two away from a bunch of Siberian elm tree shoots. The elm is pretty dead except for a number of shoots which I've cut down and ...
4
votes
1answer
317 views

What is this plant with thorns on bottom of leave

This plant has sprung up in a few places. Im not sure if its a weed and should be pulled or left alone. It has thorns growing under the leaf down the spine. Heres another pick i thought primula at ...
4
votes
1answer
144 views

What is this terrible-looking hairy plant with maybe nice flowers?

What is this terrible-looking hairy plant with maybe nice flowers? Its height is 25cm/1ft, this is the only specimen in my yard, it could be non-invasive, but it looks no beautiful to me, so I will ...
4
votes
2answers
75 views

Can I Combine Pre-emergents

Some pre-emergents are good for stopping things like crabgrass and annual rye-grass (e.g. Halts) while others are better/made for broad-leaf weeds like dandelion and clover (e.g. Gallery). Question: ...
4
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2answers
828 views

How do I eradicate Devll's walking stick (Aralia spinosa)?

I live in Philadelphia, Pennsylvania, and my backyard has been invaded by Devil's walking stick (Aralia spinosa). I've been told by landscapers that the only way to eradicate it is to cut it and to ...
4
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2answers
272 views

What is this weed and which herbicide will kill it? [duplicate]

My lawn has been taken over by this viney weed. Does anyone have any advice as to a weed and feed that will work to kill it?
4
votes
1answer
5k views

What is this burr covered plant (weed?)

Click photo for full size These plants are growing all around my new house. I am wondering if this burr infested plant is anything that is worth keeping or if it is just a weed that sticks itself to ...
4
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2answers
147 views

Identify a Pennsylvania weed with alternate lanceolate leaves

Can anyone identify this weed? I am in western Pennsylvania and would appreciate knowing if it needs to be eradicated.
4
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1answer
3k views

What weed killer should I use before laying a new lawn?

I have been working on my garden and had to remove trees, bushes, and the old lawn. I am starting to see new shoots coming through the soil. What weed killer do I need before I lay a new lawn?
4
votes
1answer
217 views

Returning a garden paved for 30 years with packed clay below, back to lawn

My new rear garden has had concrete slab paving for decades, resting on heavily packed and deep London Clay soil and a small amount of odd rubble. The paved area measures about 6x7m. The soil under ...
4
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2answers
187 views

What is this in my garden [duplicate]

It is about 4 ft tall and I have no idea what it is can anyone help me?
4
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0answers
63 views

What is this aromatic plant with narrow leaves and tiny white flowers that grows about 8' (2.5 m) high?

Found in New York State, zone 7 where it has invaded my herb garden and outgrew it. I was wondering if it would be a useful herb.
4
votes
0answers
66 views

What is this ground cover weed similar to Galenia

What is this ground cover weed similar to Galenia? It seems to grow in the same environment and it has a blue tone to its leaves compared to galenia. Galenia has a semi-succulent leaf, whereas this ...
3
votes
4answers
217 views

What are these weeds & how can I prevent them? [closed]

In one of my past posts, I asked how to seed my 20 x 25 ft backyard. I had great results by following your recommendations. I also left 1 1/2 ft as a bare ground border, keeping it weeded by pulling ...
3
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2answers
312 views

Can anyone identify this weed seen near Toronto?

It was found in the Toronto area in Ontario, Canada. Here's a picture:
3
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5answers
235 views

How can I clean up my lawn from weeds? What kind of weed is this?

I recently purchased a house last year, and am noticing that most of the lawn is weeds. There are a variety of different looking ones, but there is one type that is all over my lawn, probably taking ...
3
votes
3answers
127 views

A plant or a weed?

Can anybody tell this non-gardener (hopeless!) what this is? It suddenly showed up in the area on the side of my house that I don't have anything growing in. I'm guessing a bird left a seed but ...
3
votes
3answers
128 views

How do I reliably deactivate weed seeds that I've gathered?

There's a number of Sosnowsky's hogweed (Heracleum sosnowskyi) plants which have blossomed a while ago and now they are standing with dry seeds ready to be spread by wind. Suppose I gather the seeds (...
3
votes
1answer
399 views

What's this white flower?

Growing in my garden in Wellington, NZ where it's now autumn.
3
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2answers
318 views

Weed identification in Queensland, Australia. What are these?

What are these weeds and how do I get rid of them? They're thriving in the dry soil while the grass struggles.
3
votes
1answer
135 views

Is this large-leaved perennial a weed?

Trying to decide if I should pull this. Anyone know what it is?
3
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2answers
1k views

Is this a grass or weed?

Located in north central Texas. And what kind of plant is this?
3
votes
1answer
1k views

What is this plant in my vegetable bed? [duplicate]

I found this strange vegetable-looking plant growing randomly outside my apartment and was wondering what it is. It looks like a mustard family vegetable and the purple/green stem is similar to ...
3
votes
2answers
657 views

What is this tall, alternate leaved plant from Piedmont region MD?

It comes up in the spring, gets about 3.5 ft tall, never blooms & dies back in winter. I've pulled up a lot of it; it grows from an underground thick runner type root system. I think it's a ...
3
votes
1answer
3k views

Can I use weed killer to eliminate grass growing between my bulbs?

In the borders on the front of my house, I have a number of shrubs and bulbs that come up every spring. Every year, once the bulbs have died off, I dig the soil and rid it of the weeds and grass. ...
3
votes
3answers
556 views

Advice with laying a lawn please

This is probably the sort of thing thats been asked a thousand times but I have no idea what I'm looking for we moved into a house with a lovely huge pond, however now we have our first child and ...
3
votes
1answer
2k views

Rock salt to kill weeds

I wanted to sprinkle rock salt around pool to kill weeds. Then put decorative stone on top. Will the rock salt affect my pool liner. I don't want to have the rock salt kill the weeds and destroy my ...
3
votes
1answer
193 views

Is this a weed? Colorado foothills… very tough

Little flowers sawtooth round leaves. Ex may have planted this... makes ne think of Grecian Windflowers ... but this is fall and they have just come up in the last month! Flowers are in bud stage. ...
3
votes
1answer
150 views

Texas weed identification

I live in central Texas and have a serious infestation of this weed... I'd like to know what it is so I can buy the right kind of herbicide... I tried searching google images with this, but nothing ...