Use this tag for questions that ask "what is this thing?" Pictures are helpful, as are descriptive titles. When you get an answer, consider adding a further tag (for the flower, tree, beetle etc that has been identified) so that your question is cataloged correctly. If the question is about ...

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44
votes
9answers
75k views

How do you identify a plant?

I'm pretty new to gardening and landscaping. Having recently bought a house, one of the things I'd like to be able to do is identify the trees and smaller plants that are on the property so I can ...
16
votes
2answers
3k views

What is the name of this weed with red/green leaves and little white flowers?

I haven't been able to identify this weed which is prolific on the gravel (and garden beds) on the rooftop of my 10-storey condo building in downtown Vancouver, BC. Can anyone identify it and let me ...
15
votes
3answers
13k views

How can I tell if a plant given to me is patented?

Sometimes, I receive an unlabeled plant start from a friend, and they do not know if it is patented. If I want to grow and sell a plant in question, is it okay to just take the chance, or is there a ...
15
votes
5answers
7k views

What are these hard white/brown spots growing on my houseplant?

A little more then an year ago I got six palm trees (two vases). It was the Californian equivalent of an Areca palm (the guy in the nursery suggested this one after I asked for an Areca for its air ...
14
votes
5answers
2k views

What is this vine-like weed and how do I kill it?

I have a viney weed growing in my yard. Weed and Feed doesn't seem to affect it. It's slowly spreading to more and more of my yard every year. What is it, and how do I kill it?
14
votes
1answer
699 views

How can I identify and eradicate poison ivy, poison oak, and poison sumac from my yard?

Every summer despite my best attempts to be careful, I end up developing a nasty rash due to an unfortunate encounter with poison ivy while doing routine yard work. How can I best identify poison ...
13
votes
4answers
706 views

Does anyone know of a somewhat comprehensive plant database available online?

As a gardener I've found that doing some paperwork while gardening really assists in keeping things organized and on schedule. It occured to me the other day as I stopped to check my beeping phone ...
13
votes
2answers
735 views

What kind of plant/mushroom is this?

Two days ago I noticed this thing growing semi-covered in my garden near a grapevine: As you can see, it was light purpalish - light pinkish kind of colour. On touch it was a bit soft, and the ...
13
votes
2answers
468 views

What is this large flat leafed plant with yellow flowers (central Missouri)

I live in an apartment building, and my landlord has neglected to mow the back yard for quite a while now. In this time period this unknown plant that I've never seen before has grown to a height of ...
12
votes
2answers
7k views

How can I identify an apple variety?

We put in four young apple trees a few years ago, two cookers and two eaters, four different varieties. Now that those puny trees have grown up and started to produce a substantial crop, we're ...
12
votes
2answers
696 views

What is this shrub and has it come back from the dead?

We had this deciduous shrub in our lawn for many years. Its height was about 1.5m - 2m. This photo is from a couple of years ago. Strange thing is that this spring it seemed to have died. We ...
11
votes
3answers
948 views

What are these viny plants? Are they poisonous?

These plants are located alongside a fence in my backyard. What are they? My biggest concern is that they might be poison ivy. However, the plant in the first picture closely resembles a vine that ...
11
votes
5answers
703 views

What is this large leafed plant?

I like the way it looks and might want to get one but I need to know what it is. The location is Minnesota.
11
votes
2answers
3k views

What are the teeny tiny white bugs on my tomatoes?

The bugs are exceptionally small. I've included a video here. It may be related to the stretched and disfigured appearance of my tomatoes.
11
votes
3answers
1k views

What is this long-rooted vine in my yard?

I'm in Massachusetts, and recently moved into a new house. We have a vine in the yard which I have been having trouble identifying so far, and I was hoping someone here might know. It has not yet ...
11
votes
2answers
261 views

Hexagonal bush?

I have seen the pictured bush today when hiking around Las Palmas de Gran Canaria. From a distance, hexagonal patterns are visible: Adjacent branches grow in an almost perfect 45° angle relative to ...
10
votes
4answers
389 views

Do clovers cause any problems?

I have a lot of what I think is Clover in my garden. Should I be concerned?
10
votes
2answers
320 views

What kind of pepper is this and when will it be “ripe”?

What kind of pepper is this and when will it be "ripe"? The peppers are a bit larger than a cherry tomato (maybe apricot size). UPDATE: The peppers turn red after they ripen.
10
votes
1answer
550 views

What is this fast growing plant with blue/black berries?

In my garden a strange plant is growing at an incredible speed and I can't identify what kind it is. It broke through end of June and within two months it grew about 1.8-2.0m high. It now carries ...
10
votes
1answer
85 views

How do I link a specific garden plant to its native plant community?

If I have a garden plant, say for example, Herniaria glabra, and I want to identify its native plant community, i.e. the dominant species, associated species, soil, climate etc., how do I go about ...
10
votes
1answer
265 views

How can a green leaved canna's flower color be found when not in bloom?

At a perennial sale once I found an unmarked canna with green leaves, and when I asked what color the flowers were, they said they didn't know. After looking at the leaves for a while, they decided it ...
10
votes
2answers
592 views

Is this plant really holy basil?

I bought some holy basil seeds on the internet and grew them. However, I think the shape of the leaves on my plants are more ruffled than those in the pictures I saw online. Here are some photos of ...
10
votes
1answer
792 views

What kind of plant is this growing in my friend's shower, and how can I grow one?

I came upon this plant growing in a friend's shower the other day (don't ask me why I had my camera in her shower!): I thought it added a unique and interesting touch to the shower. What kind of ...
10
votes
1answer
307 views

What is this potential lawn replacement plant?

I found this plant invading an unirrigated school yard lawn in Everett, Washington (USDA zone 8a): This plant is very effectively competing with the grass and might make a good lawn replacement. ...
10
votes
1answer
1k views

Can anybody identify these small, red insects?

What kind of bugs are these? Are they good or bad for plants? Do they bite?
10
votes
1answer
406 views

Is this beetle on my apricot tree a pest?

My apricot tree is infested with black and white beetles on the branches. They are 2-3 cm / 1 inch long. I can't find an identification on the web. There is no visible damage to the tree. Is this ...
10
votes
1answer
615 views

Tomato plant looks like it has grains of salt - what is it and how do I treat it?

My cherry tomato plant has been showing some yellowing of leaves over the past week or so. Just today I noticed the formation of these cluster of white granules - not sure if it's connected to the ...
9
votes
3answers
641 views

Is this plant some kind of Poppy?

I'll start by saying I'm by no means a gardener and I usually kill anything that's green and lives in a pot, however I'd like to say this one is doing well, judging by its height. It no doubt needs to ...
9
votes
5answers
1k views

What is this large furry leafed plant with purple stalks, found in the UK?

Does anyone have any idea what this is? It looks too substantial to be a weed
9
votes
1answer
2k views

What are these swirly green growths inside my bell peppers?

I occasionally discover swirly green growths inside my bell peppers, such as the ones pictured below. What are they exactly? Are they edible?
9
votes
2answers
1k views

What is this plant with long sharp leaves? Is it a weed?

In my garden I have several of the plants shown below. At first I thought it is a weed, but then it was quite robust against cold weather and continued to grow slowly: The leaves are long and sharp, ...
9
votes
1answer
1k views

What kind of black and yellow insect has a zebra like pattern?

Can anyone help me identify a insect with the following features: black and yellow long feelers body is tapered toward the back zebra like pattern on the shell about 1.5 inches long found in ...
9
votes
1answer
250 views

What is this low-growing evergreen?

I found this plant in my woods And would like the identification. It is a small woody evergreen that grows in dry soil in light to deep shade. It grows about 1 1/2' tall and has small clusters of ...
9
votes
1answer
1k views

What is this plant with red, green and yellow colored leaves and little white flowers?

I'd like to get a hint to identify the beautiful plant with red, green and yellow leafs in the picture below. The color of the leaves has been like that since the plant has been there (at least since ...
9
votes
1answer
240 views

What is this Vine-type plant growing on my Jacaranda tree?

I have a vine-type plant that is growing on areas of my Jacaranda tree (me + the tree live in Australia). It has little leaves. The roots of the vine grow on the outer-layer of bark on the tree. Does ...
9
votes
2answers
365 views

What is this pink flower with dark green leaves?

Any help would be appreciated, thanks!
9
votes
2answers
433 views

What kind of lawn grass doesn't spread and is exceptionally shade tolerant?

This grass is a very good lawn grass, showed mowed and unmowed, and I would like to buy seeds for it. Of course, I can't do that unless I know what it is. It does not spread, it doesn't turn brown ...
9
votes
1answer
771 views

What type of squash is growing out of my compost pile?

I didn't turn my compost pile this spring, and had an unexpected surprise that's been growing for the last few weeks. Can anyone identify what it is? I'm almost 100% sure it's some type of squash, but ...
9
votes
1answer
520 views

What is this plant found in the UK with green and white leaves with purple flowers?

Any ideas what this plant is and how to control it?
9
votes
1answer
1k views

What animal is eating my cherry tomatoes and strawberries?

My garden (first ever!) has been doing great. Yesterday I harvested my potatoes, which left half the garden open and bare. Some critter seemed to view this now-open landscape as an invitation to come ...
9
votes
2answers
605 views

What is this bluish-grey bug on my lettuce, and how do I treat it?

I have a planter with several lettuce plants and other plants growing on my balcony. Recently, all of "normal" leafy lettuces were rapidly overcome by a bug. A sawtooth, more mizuna-like lettuce was ...
9
votes
1answer
172 views

Advice for overwhelmed beginner

I'm the new owner of a well established garden. Unfortunately I don't really know what I'm doing... Already I seem to have lots of problems (e.g. well established Rhododendron now near death), which ...
9
votes
1answer
360 views

What kind of chili turns brown and shrivels when ripening on the plant?

I have a few of these chili plants growing and they produce a longish (approx 4", sometimes curled chili that turns brown and begins to shrivel (slightly) when it ripens. It does not transition to a ...
8
votes
3answers
4k views

What is this plant that resembles tomato and has small dark fruit?

I got lazy and let weeds takeover a bed near the porch that has some azaleas and perennials. When I went to pull some of the weeds, I noticed this ~3ft high plant that looks like a tomato plant. It is ...
8
votes
3answers
615 views

What is this weed and how do I get rid of it?

I'm located in northern Utah, USA. There is a weed which is proving difficult to control, which I haven't been able to identify. It is usually fairly easy to pull, but you only get a small bit of ...
8
votes
2answers
428 views

Is this plant Giant Hogweed?

In getting our spring landscaping underway, we've run into a bush that a family member is sure that this plant (pictured) is Giant Hogweed. Click photo for full size British Columbia considers this ...
8
votes
2answers
619 views

Can anyone identify this abnormality that is on my dwarf citrus?

I recently noticed what looks like small beetles on our dwarf citrus tree. Can anyone identify this abnormality? Click image for full size Is this something harmful that I should attempt to ...
8
votes
2answers
326 views

What is this grass that supports all weather types, doesn't invade and prevents bad plants from sprouting?

It apparently doesn't grow longer than on the photos, can support all types of weather, doesn't invade other parts of the garden and it seems to prevent "bad" plants from setting up there (bramble, ...
8
votes
1answer
619 views

Can anyone identify this mystery plant growing in my vegetable garden?

I put a base of compost in my vegetable garden this year which included some number of seeds from vegetables I've eaten in the past. So far I have identified a tomato and squash plant, but this one is ...
8
votes
2answers
389 views

Identification of this branched bush with tiny blue flowers

I would like to prune this bush in my garden. It wasn't me who planted it, which is why I don't know what it is and before doing any mistakes I'm asking here for help. With this one I'm especially ...