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
2
votes
1answer
819 views

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....
2
votes
3answers
4k 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 ...
2
votes
1answer
143 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
2
votes
1answer
201 views

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. (...
2
votes
1answer
355 views

Pilosocereus cacti, growed from seeds and a lot of mistakes

I made a terrible (i hope not that terrible) mistake when growing Pilosocereus pachycladus cacti from seed, i sowed them back in November. I know it's probably not the best idea to sow them right ...
2
votes
2answers
478 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) ...
2
votes
1answer
2k views

Why are some of the lower leaves on my cactus turning brown?

I have a cactus standing on my windowsill and for years it seemed pretty healthy, but last month its leaves started to turn a light brown-pinkish, kind of like a salt stone lamp. They also look a bit ...
2
votes
0answers
33 views

What’s wrong with my cactus?

My cactus has been like this with cracked skin for months, I then noticed it had aphids and removed them with soap and water for one week and they went away, and just today I noticed these brown spots ...
2
votes
0answers
16 views

Cactus(Astrophytum) seedlings weather requirements

I live in Kerala, India, where the weather is humid dry. The temperature ranges from around 26 at night to 33 on daytime. My Astrohpytum seedlings are growing. They're 1.5 months old now. My questions ...
2
votes
0answers
28 views

Browning at base of my cactus

I have had this cactus for a while now (about 4 or 5 years) and recently noticed browning near the base. The spines at the bottom are also a different color and pressed closer to the body of the ...
2
votes
0answers
28 views

Discoloration of cactus: Fungi or Mite?

I’ve been caring for this cactus for about 3 years now, and it seems happy based on the amount of growth. Recently (about 2 months ago) I started to notice a discoloration/change to the outside of the ...
2
votes
0answers
30 views

What are these yellow spots on my Melocactus concinnus?

I purchased this Melocactus concinnus online a couple of months ago. I don't remember seeing those yellow spots on the bottom half of the cactus. It's possible, however, that I just didn't pay close ...
2
votes
0answers
33 views

What’s wrong with my cacti

My cacti look very ill, and I don’t understand what I am doing wrong and what’s going on. Could someone please help me with advice of what to do?
2
votes
1answer
76 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’...
2
votes
0answers
138 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 ...
2
votes
0answers
75 views

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.
2
votes
1answer
569 views

What's wrong with this cactus?

I have this cactus that is slightly wrinkly and soft at the bottom part. It sits on a window sill with all my other plants and receives around 5-7 hrs of direct sunlight every day. I water it once a ...
2
votes
2answers
312 views

What kind of succulent is this and why are the leaves wilting and changing color?

What kind of cactus is this and what's wrong with him? I got him at the farmer's market and he didn't have a tab that says what conditions or how often you should water. I spray him with water once a ...
1
vote
1answer
102 views

Old cactus Browning at base

I have a 25 year old cactus that is Browning at the base it is not soft to touch it is hard. It does have new growth andit is spiny at the very top. Please help I do not want to lose him!
1
vote
2answers
4k 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 ...
1
vote
1answer
57 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.
1
vote
1answer
36 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 ...
1
vote
2answers
137 views

What's this cactus with tongue like leaves?

Saw this cactus while I was walking along the road in Whangarei which has a subtropical climate. It is growing over the fence into public air space so it would be legal for to take a cutting. And I ...
1
vote
1answer
89 views

Cactus growing in a stem between two leaves?

Question 1: What plant is this... a cactus growing in a stem between two leaves...? Never saw that at stores, I think! It got so heavy that it started falling, I'm keeping it up straight with the help ...
1
vote
1answer
70 views

What are these yellow splotches on some Christmas Cacti (Schlumbergera) I rescued? Are they a positive or negative sign?

A few weeks back — on a fairly windy night here in New York City — I was going out to toss out the trash when someone’s small pot of Christmas Cacti (Schlumbergera) crashed down on the ground right ...
1
vote
2answers
311 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 ...
1
vote
1answer
122 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?
1
vote
1answer
75 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 ...
1
vote
1answer
50 views

Is my cactus okey?

This is my first time posting thing here n honestly the only reason I'm signing up on this website is to find out on what the hek is wrong with my cactus. So please??? I had been searching on Google ...
1
vote
1answer
75 views

Part of cactus turned brown and shriveled

I've had a cactus since December, which is placed next to a Northern facing window. I've only watered it a handful of times since then. It has a small piece near the top which about 2 weeks ago turned ...
1
vote
1answer
85 views

Austrocylindropuntia subulata breaking off

I've had this one for about 3-4 years - found a piece of if on the ground broken off from the big plant and potted it, and it kept growing since (in the same pot all this time). Few days ago, one of ...
1
vote
1answer
115 views

Monkey Tail Cactus Burned under lights do I have to move it?

My Monkey Tail Cactus hangs down really low, so I have to raise it up to keep it from touching the ground. When I raise it up it gets closer to the grow light. The last time I raised it up I burned ...
1
vote
1answer
91 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 ...
1
vote
1answer
56 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 ...
1
vote
1answer
72 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 ...
1
vote
1answer
53 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 ...
1
vote
2answers
482 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 ...
1
vote
2answers
73 views

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 ...
1
vote
3answers
351 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 ...
1
vote
3answers
107 views

what is the name of this cactus/succulent?

Hi everyone, can anyone identify this cactus/succulent? Thanks in advance for your suggestions
1
vote
2answers
92 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 ...
1
vote
1answer
264 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?
1
vote
2answers
232 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'...
1
vote
1answer
312 views

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 ...
1
vote
1answer
78 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).
1
vote
1answer
346 views

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?
1
vote
1answer
152 views

How to help/not hurt my half dead looking cactus? [closed]

I've had this cactus for a while and at some point I kinda forgot about it. Then suddenly I had the aspiration to save it so I began watering it once a month or so. The only problem is now I have a ...
1
vote
1answer
2k views

What is the legality of growing San Pedro cacti in Florida? [closed]

Clusters of columnar cacti like the San Pedro (Echinopsis pachanoi) are very appealing to me. I want to grow it all around my house. I am aware however that this is considered to be a hallucinogenic ...
1
vote
1answer
26 views

My cactus is growing very thin

[![]my cactus is growivery thing. It was left unattended for a month without proper sunlight or water. I want to know how i can save it. Please help me. Sharing some pictures below.2]2 It used to look ...
1
vote
0answers
37 views

How to get get pups or divide this overgrown aloe vera plant?

I have a very large aloe vera plant. I cannot see any pups/babies. Is there a way I can divide it into more pots, either so the original isn't as big or just just to have more aloe vera plants? It's ...