Questions tagged [cactus]

Member of the family Cactaceae. Desert succulents, but for non-cacti succulents use the [succulents] tag. Use this tag with questions about caring, propagating and identifying cactus.

Filter by
Sorted by
Tagged with
1
vote
0answers
20 views

Cactus dying from insufficient light?

I left the country for two and a half months and left my cactus in the care of a friend. When I came back, apparently he had been leaving it under a desk lamp and not by the window to get enough ...
1
vote
0answers
26 views

What is the cause of this white scaling on my cactus?

I’m not sure what type of cactus this is, but I’ve had it about a year and since getting it I’ve moved it into a pot with drainage. I’m careful with watering and do so about every 45 days as that’s ...
1
vote
1answer
59 views

How should I proceed with this cacti

I have one cactus for about 5 years now, and since then it grew from about 3 cm to considerable size. I am watering it every 20 days and it is not exposed to direct sunlight. But I was always puzzled ...
1
vote
0answers
22 views

Browning cactus. Cut and repot or wait?

Not sure what type of cactus this is, but it was a grocery store purchase from 2 years ago and has been doing okay until the past 6 months. It sits in a western facing window with about 7 hours of ...
1
vote
0answers
135 views

Why are there brown spots developing on my Coral Cactus?

I have had my Coral Cactus for approx 4 years. Noticed brown spots developing on the fan part of cactus..never noticed this before. I am wondering what is the cause and what I can do to fix it
1
vote
0answers
19 views

Pollinating dragon fruit in broad daylight

Most tutorials on pollinating dragon fruit say that the flower will open past midnight. They suggest to go out with a flashlight and use a paintbrush to pollinate it. If I don’t want to screw up my ...
1
vote
0answers
117 views

Why is my cactus turning brown and getting crusty stuff on it?

[![brown base getting bigger ][1]][1]browning cactus- crusty near crown I have had these for about 5 or so years. I noticed the brown near the bottom for quite some time but thought it was normal. ...
1
vote
0answers
33 views

What’s going on with my cactus

My cactus has started to to yellow, it was left in the greenhouse over winter in its normal
1
vote
0answers
18 views

White spot on cactus? Can someone help identify and find a fix?

I’ve had this problem for a little while, maybe a month? I haven’t noticed any spraying but I am worried about his health over all. He’s indoor and was in natural light when this began and is now ...
1
vote
0answers
33 views

Deteriorating Cactus

My cactus is showing signs which might be detrimental to its health. This is an image of the cactus The base of the cactus has a white coloration but is still firm( I don't think its a sign of rot) ...
1
vote
0answers
45 views

Please help me identify my cactus

Please help me identify my cactus :) It is about 20 years old at about 3 feet tall. It has 6-7 ribs near the top that fill out towards the middle and bottom. Here are some more closeup pictures ...
1
vote
0answers
33 views

Can someone help me diagnose what is wrong with my cactus and how do I treat it?

Does anyone know what is happening to my cactus. It was a beautiful specimen when I got it and was fine for a year or so, but then it gradually started with the browning and weird skin disease. It ...
1
vote
0answers
30 views

My cactus is suddenly becoming white and shrinking

Can anyone suggest what could be the problem. I am keeping this in under a shed and watering when the top of the soil is dry. Is it a bug or rot root problem ? !
1
vote
0answers
41 views

Cactus id (Polaskia?)

I have a cactus here (9 cm tall), and I think it is Polaskia chichipe, however it might be P. chende as well. I don't know how to tell difference. It might as well not be Polaskia at all. Can someone ...
1
vote
0answers
460 views

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 ...
1
vote
0answers
54 views

I don’t know what’s happening with my cacti it had brown spots on it and it happens a week ago I think

so I don’t know what’s wrong with my cacti
1
vote
0answers
123 views

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?
0
votes
2answers
132 views

Huge fungi in the cactus pot

A year ago or so, my cactus started developing yellow spots all over and was diagnosed with a fungal infection. As instructed, I got an antifungal spray (copper-based) and was spraying it once a week ...
0
votes
2answers
95 views

The growth on my cacti has changed, and it wierd

I asked a question about the growth on my cacti earlier in the summer, however it's just acting weird. I initially thought it was a cacti fruit because it originated from a flower I tried to cross ...
0
votes
1answer
24 views

Green cactus identification

What is the name of this cactus? I'm planning to replant it and want to do it properly accordingly to its species.
0
votes
1answer
52 views

Is this cactus being overwatered, underwatered or ill?

Can anyone please tell me what’s up my with my cactus? Is it being underwatered, overwatered or disease? Or could it be cold? Thank you very much!
0
votes
1answer
30 views

Back to basics - nutrients and growth

I have started out my journey of growing things with strawberries and cacti. But I feel I miss some of the basics of how the growth cycle works. So I have a few questions. First of all, the plants ...
0
votes
1answer
95 views

Cactus with pink spines at top?

Received this cactus and couldn't find it online what cactus this is. Care tips would be nice. Location: New Delhi Pot size is 4"
0
votes
1answer
95 views

What exactly is a gritty mix for succulents?

I have seen very few gardeners (online) use gritty mix for succulents. Here are two of them: Gritty Mix another different gritty mix Both of them talk about gritty mix and to me gritty mix makes ...
0
votes
2answers
986 views

My cactus is brownish at the bottom, is it rot?

I've had this cactus for around 5 years. A few months ago it started turning brown from the bottom, was it from over watering? Can it be saved?
0
votes
1answer
193 views

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)
0
votes
1answer
31 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 ...
0
votes
1answer
1k 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, ...
0
votes
1answer
13 views

care for a thinning cactus

My cactus is growing very thin. I was left unattended for a month without sun and water. What should i do to bring it back to the way it was?
0
votes
1answer
34 views

Should I re-pot my cacti if they're starting to touch each other?

I have 4 spiny cacti in one flowerpot and after few years one of them is starting to grow more side-wards and getting closer to the other cacti (spines are already touching). I'm just wondering if it'...
0
votes
0answers
29 views

Top of San Pedro cactus broke off…

I just found out that a cactus I was given is a San Pedro cactus. I have had it for three years on my screen porch and it has tripled in height. Recently I found it tipped over with the top 11” broken ...
0
votes
1answer
63 views

How much soil needed for cactus maintenance?

I have several Sabila cactuses that look like the picture below. I was considering filling up a cut wine bottle like this with soil and using it as a pot for the cactus. Is this possible or do they ...
0
votes
0answers
24 views

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 ...
0
votes
0answers
135 views

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?

1 2 3 4 5
6