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21 votes

How true is the idea that weeding your vegetable garden is necessary?

The stealing nutrients narrative is, in the general case, true. There are certain plant combinations which work well together, a classic example being "the 3 sisters" of corn, beans, and, ...
davidgo's user avatar
  • 4,293
16 votes
Accepted

What is this monster thistle-like weed?

After a bit of research, I believe my suspicion was correct. It seems to me that you have Tall Blue Lettuce (Lactuca biennis). Wikipedia article: Lactuca biennis is a North American species of ...
Brenn's user avatar
  • 3,056
15 votes
Accepted

Please identify this green jello organism

Not doing well with searches involving your location, but it looks very like "Nostoc Commune" which is a cyanobacterium. Image from the linked Ohio State University web page. Limiting ...
Ecnerwal's user avatar
  • 24.5k
14 votes

How do I stop my neighbor's invasive weed (now a very large tree) from continuously invading my property?

In order to determine how best to control the tree, we need to identify it, if possible. I think I've identified your problem as a Paper Mulberry (Broussonetia papyrifera). It's native to China and ...
Jurp's user avatar
  • 19.6k
13 votes
Accepted

What is this plant in my lawn?

It's creeping buttercup, Ranunculus repens. It's highly invasive and quite difficult to eradicate, especially in a lawn. I don't know what country you're in, but you need a lawn weedkiller treatment ...
Bamboo's user avatar
  • 134k
13 votes

What is this plant in my lawn?

Bamboo is correct...Ranunculus. I have to add that there is a reason your buttercup is very happy. Too much water. I would start training my lawn by watering deeply and not watering again until the ...
stormy's user avatar
  • 40.4k
13 votes

Why are weeds growing with my new seeds?

Weed seeds in the soil won't be affected by a contact or systemic (such as glyphosate) weedkiller that acts on green leaves. Regular mowing will get rid of some of the taller weeds. Otherwise, wait ...
Peter4075's user avatar
  • 3,977
11 votes

How true is the idea that weeding your vegetable garden is necessary?

It really depends on what you're growing, how you're growing it, what you expect from your garden, how big the weeds are, how close they are to your plant, how many weeds there are, how fertile your ...
Brōtsyorfuzthrāx's user avatar
10 votes
Accepted

What kind of grass is this, and how can I keep it out of my garden

With those long underground rhizomes (the thick white runners you see) and upright growth this appears to be quackgrass (Elymus repens). Unfortunately, controlling it isn't much easier with that bit ...
GardenerJ's user avatar
  • 5,879
10 votes
Accepted

What do I do once my weeds turn brown?

You have to wait 3 weeks or whatever is on the label to overseed. Exactly what did you use for herbicide? Obviously broadleaf weed killer. The only reason you even have that problem is because your ...
stormy's user avatar
  • 40.4k
10 votes
Accepted

How to get rid of bluebells without digging, glyphosate, or covering them with plastic bags

I'm going to go out on a limb and suggest that your blue flowers are Scilla sibirica. These are naturalized in many parts of the northern midwestern and eastern US States and, I believe, in southern ...
Jurp's user avatar
  • 19.6k
9 votes
Accepted

Identification - Plant growing next to my bonsai?

The small sprouts, and the grass like cereal plant (which I can't identify 100%, but which does resemble Carex, not something you particularly want), are weeds because they're growing somewhere you ...
Bamboo's user avatar
  • 134k
9 votes
Accepted

What is this bee(?)-attracting wildflower?

This is a poppy - a Papaver. Note the four petals and in the center of the flowers the characteristic thick ovaries with the crown-shaped top. Later, the dried capsule will open at the crown and ...
Stephie's user avatar
  • 16.6k
9 votes

Please identify this green jello organism

Wow. Thanks to the links provided by @Ecnerwal, I found that Nostoc Commune and related goops are truly fascinating organisms. A few random facts that deserve to be recorded here in an answer: It’s a ...
bubba's user avatar
  • 365
8 votes

How can I tell if this is a weed?

Based on the shape of the leaves, It looks like something in the Brassicaceae Family, more specifically probably the Genus Brassica. Although that is far from certain without knowing your location and ...
renesis's user avatar
  • 1,750
8 votes
Accepted

Need help identifying this plant

This is Equisetum arvense, the field horsetail or common horsetail. It is a herbaceous perennial plant, native throughout the arctic and temperate regions of the northern hemisphere. ~Wikipedia ...
Brenn's user avatar
  • 3,056
8 votes

Weed Identification

I planted some Oxalis deppei in the garden at my university last year and it looked just like your plant. It had little dark pink flowers and spread like crazy, from 15 bulbs planted in spring I got ...
Alina's user avatar
  • 5,436
8 votes

What weed covering should I use under my mulch?

You cannot use plastic - it will waterlog after rain. Weed fabric allows water and air through, whereas plastic does not. You can buy heavier duty weed fabric, so you might consider that, but most ...
Bamboo's user avatar
  • 134k
8 votes
Accepted

What plant is this? A weed?

It's an ornamental, Acanthus, or Acanthus mollis. Its fancy shaped leaves look so familiar because this plant is the prototype for the stylized "foliage" that you see in classical artwork & ...
Lorel C.'s user avatar
  • 3,619
8 votes
Accepted

What is the grassy-looking plant at the base of my blueberry bush?

That's weeds, it is some kind of grass. Seedlings of blueberries look more like this (first picture). You can pull the weeds out of there, they compete with nutrients available in the soil.
benn's user avatar
  • 13.1k
8 votes
Accepted

Garden weed or something else

Looks like Lily of the Valley, Convallaria majalis. Bindweed has large flowers, grows as a vine, and smaller leaves than Lily of the Valley.
Kilobyte's user avatar
  • 858
8 votes

Can mowing weeds cause them to spread?

Highly unlikely that your mulching mower is causing cuttings to grow. The cut weed parts won't have good soil contact and will dry out and die. Weeds that have gone to seed stand a better chance of ...
Ecnerwal's user avatar
  • 24.5k
7 votes

How can I tell if this is a weed?

You can tell it's a weed if you didn't plant it and if you don't want it (whether it's a nice plant or not). It looks a lot like arugula to me, but it looks rougher. It's possibly edible, and is very ...
Brōtsyorfuzthrāx's user avatar
7 votes
Accepted

How to replace lawn with rock garden

Simply putting down rock will not stop vegetation growth. To attempt to eliminate all vegitation growth you need to: Remove the sod and top soil Spray the area with pre-emergent vegitation stopper ...
ArchonOSX's user avatar
  • 186
7 votes

What kind of grass is this, and how can I keep it out of my garden

In the UK it's called "couch grass", or (possibly a dialect word) "twitch." The bad news is, there is no "cure" except total extermination. Digging up the turf to a depth of 5 or 6 inches and ...
alephzero's user avatar
  • 11.4k
7 votes

What do I do once my weeds turn brown?

You can rake them out or leave them there. I would not pull them out because doing so will disturb the soil underneath and get more unwanted seeds to sprout into more weeds. In terms of reapplying ...
JStorage's user avatar
  • 7,964
7 votes
Accepted

What is this weed and how do I kill it without killing the grass?

It does look like wild violets, and they are difficult to eradicate, but triclopyr, or any other lawn weedkiller that purports to kill these, is much more effective used in autumn, see here https://...
Bamboo's user avatar
  • 134k
7 votes
Accepted

What are these weeds and how can I get rid of them?

You have hairy bittercress (Cardamine hirsuta) in your garden. This plant very often comes as "hitchhiker" with newly bought plants. It is a very prolific seeder and can bring even two generations ...
Stephie's user avatar
  • 16.6k
7 votes

Why are weeds growing with my new seeds?

I used to live near a retired professional gardener who had worked in English "stately home" gardens where lawns (acres of them) were a key feature. One of his pieces of advice was "...
alephzero's user avatar
  • 11.4k
6 votes
Accepted

Is this plant with small white blossoms a weed or a flower?

That's buckwheat from the fagopyrum family (I would expect some reddish tinge especially on the lower stem for buckwheat - but your photos only show the tips). Whether you consider it a flower or a ...
Stephie's user avatar
  • 16.6k

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