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Questions tagged [cactus]

Member of the family Cactaceae. Desert succulents.

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How can I help out this cactus?

Unfortunately I don't know the name of this cactus, How do I get rid of these little white things that is like a spider web? she is dying :(
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1answer
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How can I tell how old my fairy castle cactus is?

this is my new fairy castle cactus also referred to as a green finger cactus(https://i.stack.imgur.com/ZpBSg.jpg)
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1answer
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Proper growth of pear cactus

I have two cacti growing in two separate apartments. Both get about the same amount of water and sun. I think they are the same species. One grows nice oval features but the other grows long ...
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Why is my cactus losing spikes?

So basically i recently got this cactus as a gift. (And is the 1st time owning one) i keep it in sunlight, water it ever 1-2 weeks depending on how dry the soil is, and i keep it in a pot with holes ...
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2answers
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Is my cactus being under watered?

I’ve had my cactus for over a year now. I bought it late winter/early spring (February/March?) and from the time I bought it to around a month ago it had very stunted growth and didn’t grow any new ...
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1answer
23 views

Should i remove my prickly pear?

I have a large prickly pear cactus growing closely between a pomegranate tree and a raspberry/loquat tree. Both pomegranate and raspberries need a lot of watering and a cactus of course does not. Also ...
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1answer
26 views

Cactus identification

I live in a student house where one of my fellow housemates has a cactus. She's incredibly bad in caring for her plants and pretty much doesn't give any attention to them whatsoever. Though, she ...
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1answer
15 views

Transplant aloe to several pots?

This is my aloe vera plant. It’s healthy but it long outgrew the 10” pot. Instead of moving it into a bigger pot, I would like to transplant it into 2 or 3 pots. How should I do this without hurting ...
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Yellow spots on cactus, brown spines

I have a cactus in which some yellow spots are appearing, some are starting to turn brown even. Then the spines seem to be dark brown on the top and white on the sides. Not sure if that's normal. I ...
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1answer
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What is this problem on this succulent?

I have this succulent in my indoor since last few months. I just moved it outside few days back and now they look like this. This is how I ruined this plant :( I moved it to sunlight which was all ...
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1answer
30 views

What cactus' disease is this?

My sister has this cactus with those brown spots in it. It does not seem to be spreading, or if it is, is very slowly. Does anyone know what it is so we can treat it?
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2answers
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What are these Cacti? Are they Healthy?

I bought two cacti from IKEA. I water them weekly. They seem happy. Not growing much but maybe a little. I don't know what they are or if I'm looking after them right. Please have a look at the ...
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Scale like skin on indoor dragonfruit plant. Help!

I’m a little concerned about my dragonfruit plant (at least I think that’s what it is-bought it as a “cactus”). It has always had a little of this scaling, but it has gotten worse recently. I’m just ...
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Epiphytic(?) Cactus Identification Needed

Epiphtye-like cactus Got it while picking up a Moonglow graptoveria at a local greenhouse. This sad little epiphytic guy looked way out of place among the golden barrel seedlings. Unfortunately there ...
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1answer
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Cut-off cactus piece not showing signs of new roots, should I plant it in the ground anyway?

around 3 weeks ago I've cut off the top of my healthy moon cactus with the hopes of successfully replanting it. I followed some online tutorials and left it out on a plate to dry, kept it out of any ...
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1answer
47 views

Is there any chance for this cactus?

I have this cactus cactus, but it leans heavily. The bigger it gets, the more it tends to lean. It leaned even before I repotted it, and is even worse after. Is there any saving it, or should I just ...
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3answers
58 views

what is the name of this cactus/succulent?

Hi everyone, can anyone identify this cactus/succulent? Thanks in advance for your suggestions
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1answer
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Diagnosing yellow spots on my cactus growing under artificial light

I have owned a Mammillaria Nejapensis for the last few months which began showing unhealthy yellow spots a few weeks back and seems to be getting progressively worse. A photo of the cactus is attached....
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2answers
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Small cactus with woolly sides identification

I got this cactus as a present, at least I think it is a cactus, but don't know what species it is. It is small now about 5-6 cm in height. It has hairy or woolly sides, and has multiple stems. Does ...
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1answer
60 views

The water in my cactus oozed out when I moved the pots and now it is kind of deflated, is it dead, is there any way to help it?

The water in my cactus oozed out when I moved the pots and now it is kind of deflated. Is it dead, is there any way to help it?
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2answers
111 views

When and how to repot this cactus?

I found this cactus in a store, it was labeled as "cactus" but I think it is one of the giant cacti (see my previous question). It is about 12 cm in height (without spines). I was wondering when is ...
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1answer
38 views

Christmas cactus: brown spots

I recently got a small Christmas cactus, and have put it on a shelf indoors, not directly exposed to sunlight (as I've been advised to do). I water it when the soil is dry to the touch. Recently, ...
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3answers
336 views

Why is this cactus plant turning yellow at the base?

I've done some research and found that yellowing/browning on the base can happen for several reasons. Sunburned Mites Root Rot from being too wet Not enough water My guess is it is root rot because ...
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2answers
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What kind of cactus do I have?

I was gifted the plant about 3 years ago and don't know what it is. It's grown a ton in that time, but no sign of fruit or flowering at all. This is the first plant I've been able to keep alive and I'...
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1answer
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Why is my cactus limping?

Not sure why it's been limping, the baby one also started limping and died recently. The bottom is a bit yellow but not rotten yet. Not sure how to care for it not that it's so tall
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2answers
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Help revive cactus?

I bought this cactus a few years ago and I want to fix it. I don’t know how to fix the almost translucent spots it has and I would like to repot it but not sure how since the rocks are like glued in?? ...
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1answer
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White spots on cactus

I’m fairly new to gardening but purchased some cactus’ last year. I noticed one started to develop a white spot on the side of it. I isolated this cactus into its own pot. Any idea’s what it is or ...
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1answer
48 views

Frostbitten cactus, turning yellow and black, can it recover?

I've had this cactus for a while now, last spring I moved it to the balcony and kept it there till now. I thought everything was ok but then I noticed that the side not facing the window was turning ...
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0answers
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What should I do next to take care of this cactus which I grafted two years ago?

Two years ago I succeeded in this grafting. I would like to know how long you think it will resist the cactus feeding the graft and what to do next?
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2answers
113 views

What kind of cactus is this, and why is it drooping?

Why is this cactus drooping? I tied the top so it would stay upright and not droop, but now it’s starting to droop anyway over a period of two months. The plant belonged to my deceased fiancé and I ...
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1answer
46 views

Small cactus identification

I got this tiny cactus as a present for Christmas. I am sure it is a real cactus because of the areoles. Can anybody see what species it is? The diameter is about 3-4 cm (1.5 inch).
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Small succulent (cactus?) identification

I got this cactus from a friend, but I am not sure if it is really a cactus. It could also be a succulent other than cacti. Does anyone know what species this is?
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1answer
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Repot dragon fruit in a definitive pot

I planted these cuttings two months ago and I have a lot of questions. Is it time for repotting? I have 26 liters pots. Is it enough? Can I plant more than one in the same pot? What kind of soil ...
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1answer
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What is happening to my Agave attenuata

I have owned the depicted Agave attenuata since about half a year. It was outside until early November when local temperatures became too cold. Now it resides in in a light, moderately heated room. (...
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2answers
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Cactus Identification? Are the buds real?

My friend brought me a little cactus from a plant sale. Unfortunately I don't have a clue about cacti and was wondering if someone could tell me what the little orange buds are? Are they real? I can't ...
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Cactus shoots drooping and turning olive

Hey Gardening & Landscaping SE, happy to be a new member! I am concerned for my cactus shoots and hope you are willing to help me out. Short version: My 3,5 months old cactus shoots are starting ...
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Young cactus identification

I bought another small cactus today, the sellers in the store were not sure what species it is. My guess is that it is from the genus Pilocereus, but it is a wild guess. The height is about 7-8 cm (3 ...
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1answer
221 views

Why is the bottom of my cactus discolored and soft?

I got this cactus a couple of years ago but in the last few months I have noticed the bottom half getting brownish and soft. I water the cactus about once every 6-8 days and it gets a lot of direct ...
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Strange plant or weed? [closed]

This decided to grow in with my Christmas cactus! What is it? I have had the cactus for years. Needed to add potting soil to it, and I think that's where this came from.
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1answer
135 views

San Pedro tipped over and broke

My San Pedro has been growing quite a lot the past 2 years, but very thin. It was windy the other day and found him tipped over. Not completely broke in half, only half way. So I tipped him back right ...
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3answers
104 views

What kind of cactus is this?

I just bought this plant but I am now realizing that I have no idea what it is, so looking up care tips is much more difficult than anticipated. Would you be able to help me identify it?
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1answer
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Is my cactus dying? Or what is this?

So I just bought this cactus two weeks ago. First cactus or plant I’ve ever had. When I got it the plant was dry af. So I watered it a little bit and every 2 days or so I put it on the window sill ...
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1answer
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What kind of cactus is this and why are these black bumps forming on it?

Little burnt-looking bumps have been popping up on this cactus and I'm not too sure what to do about it. Can you help me figure it out?
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2answers
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Help identifying a cactus

I got this cactus as a gift. Can somebody please identify what it is? Thank you.
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1answer
150 views

What is wrong with my cactus?

I'm hoping someone can help me but I'm afraid it's too late. I've had a cactus for about 3 years and he suddenly started losing color, turning brown, and getting a little droopy (see pictures) a few ...
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1answer
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Soil condition for catus seedling

I have a cactus seedling (Pachycereus pringlei), it is one month old now (germinated end of August). During this time I kept the soil very moist and wet. My question is when do I switch to normal ...
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528 views

Cactus spines turning yellow?

I'm a first time cactus owner. My flatmate is watering it while I'm out on long holiday, and she sent me a picture showing that the spines are yellowing. I've read this can be a sign of old age, but ...
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Advice on LED light periods for cactus

I want to grow large cacti, see my previous question. So I start with small plants and to keep them growing in winter time I want to give them LED (special grow) light. I was wondering about the best ...
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1answer
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Ants visiting Opuntia

My (elderly) Opuntia gets regular visits from a few ants, which apparently like to draw liquid where its cactus spines emerge. For this relationship between species, do we know whether it is a ...