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Questions tagged [cactus]

Member of the family Cactaceae. Desert succulents.

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3answers
47 views

Pumice or perlite for succulents?

Is pumice better for cactus and succulent mix and such than perlite? Is it all about the chunks? I am thinking of making my own soil mix for succulents and cactus and other plants like jade plants ...
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2answers
4k views

White and brown spots on cacti

I've been away for the last two and a half weeks, and upon return I noticed a few of my cacti had developed white fuzzy spots, which were not there before. In the worst instance, one cactus appears ...
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2answers
38 views

Gritty mix for cactus and succulents usage

I am seeing some gritty mixes for succulents and I cannot find any info on the product regarding it usage.. Will succulents or cactus do well if they are placed in those gritty mixes? Here are gritty ...
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2answers
823 views

Cactus in hydroponics: Keep water levels up at all times?

I've read a bit online about growing cacti in hydroponics, and basically every site I found agrees that it's possible, and it should basically work like any other hydroponics: Set the plant (in an ...
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3answers
3k views

Why is my cactus so thin?

About one year ago, I purchased three cacti in the same pot. They looked like this when I got them: One of them got bigger over the months, but the tallest one kept thinning. As you can see from the ...
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0answers
1k views

Can my lemons grow in cactus soil mix

I bought cactus soil mix the other day from Calloway's for some plants. I then decided to grow lemons. So I did the whole deal. 2 weeks later I have lemon sprouts. I was wondering if I could use ...
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3answers
592 views

How long can plants survive without light?

For context I'm moving house and shipping most of my stuff. Shipping is expected to take 1-2 weeks. I want to know if shipping my house plants is worth considering. I have a bunch of cacti and ...
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3answers
76 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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2answers
175 views

Cacti red/white discoloration

I’m growing these cacti for about 9months i just changed their soil and pot, while i was picking up the little babies is realised that some of them changed color to red (meaning too much sun i guess) ...
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1answer
34 views

Prickly pear wilting after being in the sun

my prickly pear has been doing great, until this morning I put it outside in direct sun and within a few hours the new baby on the top started to lean. I also watered it the same day. Any ideas as to ...
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1answer
443 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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3answers
2k 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
32 views

Do all desert cacti need a rest period?

Assuming a desert cactus could get all of its needs, light, heat, water... during the growing season met year round, does this cactus need a rest/dormancy period to remain healthy? Flowering does not ...
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1answer
26 views

Help with Arizona cacti

Hey everyone! I’ve recently been placed in charge of caring for this Arizona native cacti. A friend of mine is travelling abroad for 8 months and I want to take good care of this little guy while she’...
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1answer
61 views

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
101 views

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
29 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 ...
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2answers
52 views

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 ...
4
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1answer
43 views

What type of cacti is this?

I would like to know what variety of cactus this is. It has grown three times its height since I bought it and although I have looked on many websites, I just cannot seem to find anything like it.
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1answer
51 views

I don’t know what’s happening to my opuntia, can you help me?

I've had this opuntia since may this year and it was growing fine, it had grown three new little opuntia and suddenly it started having this white rod like things, at first I cleaned them up but a ...
2
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1answer
64 views

Why is my cactus yellowing and dying?

My cactus has been grown from seed and has lived about five years. Over the past several months it has turned yellow- I read that it may be a case of root rot/overwatering so I’ve not watered it in ...
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2answers
60 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 ...
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1answer
62 views

Help identifying this weird cactus

got this cactus from a roadside seller. Didn't catch the name, and having trouble finding it online. The needles are very flexible and paper-like. Let me know if you have any info!
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2answers
2k views

Cactus growing white hard coating

One of my cactuses has been gradually growing a white coating, and the lower outgrowths seem to be shrivelling up and fading, I first noticed this about a year ago and it hasn't stopped no matter what ...
2
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1answer
63 views

Please ID this cactus species

The label that was in the pot when I got it identified the genus as espostoa. Is it possible to tell what species it is? If not, does it even matter? I'm trying to figure out the name of the species ...
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1answer
39 views

Cactus looks weird

Hello, my cactus is turning brown and whiteish at the base. It is not exactly softer at the base compared to the rest of the cactus. Not sure if this is root rot or something else. Does anyone have ...
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0answers
43 views

What wrong with my cactus

Ive had this cactus which i think is a Pachycereus Schotti/Monstrosus since years and its been growing fabulous. Ive just recently noticed it acquired some brown scales (non Insect) and looks like ...
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0answers
21 views

Maintain cactus without soil?

I have several cacti plants (sabila), just like the one in the picture, and I have several cut wine bottles. I would like to place several of them around our balcony, but without using soil. My ...
2
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1answer
40 views

Fairy castle cactus

My cactus has been suffering for 3 days, and now it look very sick. Could someone tell me the cause for which it looks like this and how I take care of him? Thank you very much!
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1answer
30 views

Can cactus live in water permanently?

I have many small sabilas (a cactus), so my idea was to cut the top part of several wine bottles, fill the remaining glass container with water, and place the cactus in the bottle, like in the picture ...
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2answers
209 views

Small cactus from garden center identification

I bought a small cactus from the garden center, but it doesn't say which species it is. Can anyone identify this cactus? For reference I put it next to a coin of about 3 cm (1.2 inch) in diameter. ...
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1answer
69 views

Can a cactus be encouraged to “branch out”?

About 5 years ago I was given this cactus, in a minuscule pot and severely dehydrated. To my surprise it responded to watering and repotting really well. About 18 months ago I woke one morning to find ...
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1answer
54 views

Can I Save My Purple, Skinny, Lopsided Cactus?

I am a person who recently got a cactus from a previous owner (used as a decorative piece in a restaurant), and I also have 0 experience gardening. Some searches on stackexchange and elsewhere seem to ...
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0answers
32 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 ...
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2answers
119 views

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
28 views

What’s up with my cactus

I’m new here but hoping for some help. Is he going to die, am I watering too much? I planted seeds around 1.5 years ago and I’m amazed how big he’s grown but recently he’s been turning yellowish ...
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2answers
545 views

Opuntia is slouching after repotting

About 24 hours ago I repotted my Opuntia (Specie ID is Subulata but pictures look a bit different than my plant). The plant is now slouching in a way akin to how it slouches when I neglect watering it ...
3
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1answer
35 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
44 views

can I save my cactus?

my Cactus is all mushy and shrunken in at the bottom and I don’t know what’s wrong, or if I can fix it.
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2answers
129 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?
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1answer
44 views

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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2answers
932 views

How do I divide an overgrown Mammillaria cactus?

How do I divide an overgrown cactus (looks similar to Mammillaria vetula subsp. gracilis Preiff)?
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1answer
89 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)
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1answer
18 views

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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0answers
88 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 ...
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1answer
31 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
20 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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0answers
27 views

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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2answers
69 views

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
1k views

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 ...