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9 votes
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What to do if too many seedlings are in the same pot?

You seem to have more than a hundred seedlings overall. Are you willing to grow every single one of them into adult plants? I'm assuming not. If that's the case, you'll be discarding them at a later ...
willyjoker's user avatar
7 votes
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Cactus with a growth

When you first got this cactus, with its red ball like growth on top, it would have been named Gymnocalycium mihanovichii friedrichii (common name Hibotan or Red Cap cactus), but really, that name ...
Bamboo's user avatar
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7 votes
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Rats like to eat cactus?

Rodents do eat Opuntia (also known as prickly pear) varieties - not necessarily rats, but other rodents too. You've not said what variety of cactus, but if it is one of the Opuntias, then likely the ...
Bamboo's user avatar
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7 votes
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Are these 'fluffy' cacti healthy?

These cacti seem very happy to me, they even started to get a baby! Wow! I am not sure how much light they get there on the dinner table, but many cacti are fine in the shade. Cacti in general are ...
benn's user avatar
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6 votes
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What is this flowering succulent?

It's an orchid cactus, Epiphyllum oxypetallum, also known as Night Blooming cactus - can be grown in a trailing fashion if given plenty of sun and little water, as a more upright plant given shade and ...
Bamboo's user avatar
  • 132k
6 votes

How long can an Opuntia (prickly pear cactus) live?

I don't know about centuries, but some species live a long time. The large species like Opuntia ficus indica develop woody stems and grow in a tree-like fashion. There are several other South American ...
Tim Nevins's user avatar
  • 3,228
6 votes
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What species cactus is this?

I think that's a Euphorbia, not a cactus. Similar to E. grandicornis. The tell is that the thorns aren't coming from an areole, they're growing from the edge of the plant. All cactus are succulents, ...
Tim Nevins's user avatar
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5 votes
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How should I cut a long, curvy cactus?

Very much so. I have done similar cuts many times on cacti and succulents. If you cleanly cut off the top 6 inches or so and pot it up it should root quite easily. And then remove all but the bottom 6 ...
Corsara's user avatar
  • 166
5 votes
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What is this white crust forming on my cactus during the growing months?

What you're seeing there is quite normal callous formation - it's a bit like a scab when you've cut yourself. The cause of the corky callous layers is damage - either from insects, or sudden chilling, ...
Bamboo's user avatar
  • 132k
5 votes
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What is this plant with long narrow triangle leaves and prickles?

That is indeed a member of the aloe family. As others have said, there are hundreds of types. A good list is provided here. I don't know enough to narrow it down. A Google search brings up pictures ...
Sue Saddest Farewell TGO GL's user avatar
5 votes

How to grow a new Opuntia (prickly pear) from a cutting?

I've never bothered with drying them. I just plonk them vertically in some sandy soil - I may need to prop them up at first until roots grow. Then they will grow. It might take a while - cacti are ...
winwaed's user avatar
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5 votes
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How to grow a new Opuntia (prickly pear) from a cutting?

I've propagated a lot of prickly pear. They root easily and grow roots faster than most cactus. You could just stick it in soil a few days after cutting, forget about it, and it will most likely ...
Andrew Bocz Jr's user avatar
5 votes
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What are these potted plants with thin stems and leaves that look like sticks?

Try this one; drunkard cactus, little bottles Let's see if this name works for this plant. I like the drunkard part because it looks like lots of little bottles...grins!
stormy's user avatar
  • 40.2k
5 votes

What's happening to my cactus? Why is the base of the cactus drying?

I think this is Turbinicarpus horripilus, see here http://www.cactus-art.biz/schede/TURBINICARPUS/Turbinicarpus_horripilus/Turbinicarpus_horripilus/Turbinicarpus_horripilus.htm I can see the whitened ...
Bamboo's user avatar
  • 132k
5 votes

What are these white/yellowish spots on my mexican fence post cactus?

How sure are you, that this is a fungus? To me, it looks suspiciously like scale, although the photos are a bit blurry. Try to pry off one of the bigger thingies. If my suspicion is correct, you'll ...
Stephie's user avatar
  • 16.3k
5 votes

What is this columnar cactus?

It's a Cleistocactus variety, just not sure which, maybe C. smaragdiflorus, though the flowers on that one usually have a greenish tip, see here http://zipcodezoo.com/index.php/...
Bamboo's user avatar
  • 132k
5 votes
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Why is my cactus so thin?

I think it might be Pachycereus pecten-aboriginum - not 100% whether its that or Stenocereus fimbriatus, but either way, that diseased part needs to go. It likely is attached below soil level to the ...
Bamboo's user avatar
  • 132k
5 votes
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Can I plant succulents and cactus in the same pot?

All of these succulents are from a similar environment in Southern Africa. If you put them in a nice big/long pot and don't over water, they should co-exist. You can mix diverse species using some ...
CloneZero's user avatar
  • 1,430
5 votes
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Orange and White thing in my new house plant soil

Well it looks like a fruiting body from a fungus, but not one I recognise. First, let's just clarify, when you water a houseplant, you should always empty out the tray beneath after 30 minutes, so ...
Bamboo's user avatar
  • 132k
5 votes
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Is my cactus infested with mealy bugs?

The white tufts around the cactus's needles are typical, especially because you said its been there for over 5 years. Mealy bugs congragate usually groups and don't evenly spaced on a plant's surface....
CloneZero's user avatar
  • 1,430
5 votes

Are these 'fluffy' cacti healthy?

This looks more like a Cleistocactus to me, a South American species. They look well grown; stems are fairly even width, no etiolation and fibers/spines getting longer. Vigorous spine/fiber growth ...
Tim Nevins's user avatar
  • 3,228
5 votes

Cactus with brown and white spots. What is the problem?

It either had rot or is still actively rotting from the inside out. My guess is too rich of soil and too much water. It happens.... Cactus exposed to cold would more likely be marked on the top over ...
Tim Nevins's user avatar
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5 votes
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Big cactus identification and how long does it take?

The two plants on the left are either Carnegiea gigantea or Saguaro or Pachycereus pringlei or Mexican/Sonoran Saguaro. They look very similar at this stage. They look to be 10-15 years old. My ...
Tim Nevins's user avatar
  • 3,228
5 votes

When and how to repot this cactus?

Cacti with long and relatively fat spines are not the worst to handle. You may get a few pricks, but they soon heal. Cacti with lots of very thin "hairs" (e.g. many Opuntias) are much worse, because ...
alephzero's user avatar
  • 11.4k
4 votes
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White spots at the base of a cactus

I think this is Trichocereus peruvianus - the discolored area at the base is typical of callous formation following damage of some sort. No idea what could have caused it though, there's nothing ...
Bamboo's user avatar
  • 132k
4 votes

What is this succulent with flat hairy leaves?

I believe it is Cotyledon tomentosa bear's paw. I originally forgothow I got to this conclusion. Thanks to comments below, here is my reasoning: I grow different species of Cotyledon. I grow ...
Srihari Yamanoor's user avatar
4 votes

Determine the ID of this cactus

After extensively combing over google images for the Cylindropuntia and Austrocylindropuntia genus, I have determined that the particular species in question is: Cylindropuntia spinosior fa. ...
Mustard Tiger's user avatar
4 votes

Rats like to eat cactus?

Yes, many animals including: Rodents, Rabbits, Cows, Deer and Javelina eat cactus.
nu everest's user avatar
4 votes

Centering Opuntia Cactus

Lots of plants, especially cactus, grow to maximize light exposure. I would leave it as it and change the pot orientation, maybe turn it 180°. It should help the existing part grow toward the center ...
J. Chomel's user avatar
  • 3,740

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