Pterocactus tuberosus

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Acid John
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Pterocactus tuberosus

Post by Acid John »

Pterocactus tuberosus? (so the label says). A really ugly plant with no redeeming features except one, the beautiful flower.
Rubbish body for 51 weeks
Rubbish body for 51 weeks
Nice rear to
Nice rear to
Pretty face
Pretty face
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Re: Pterocactus tuberosus

Post by juster »

That really is a beautiful flower (tu)
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Re: Pterocactus tuberosus

Post by ralphrmartin »

You need to get a magnifying glass on the stems too! Up close, they are also attractive.
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Re: Pterocactus tuberosus

Post by Acid John »

Ralph it seems to be very brittle. Just moving it to take a picture created loads of material for propagation.
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Re: Pterocactus tuberosus

Post by ralphrmartin »

Yes; some people even recommend removing the top growth in winter to encouraging flowering the following year.
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Re: Pterocactus tuberosus

Post by Acid John »

Just pull it all off down to the tuber? I think I will have to have a go.
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Re: Pterocactus tuberosus

Post by Cidermanrolls »

Hi John
This one was pruned hard last winter. It does tidy them up.
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Re: Pterocactus tuberosus

Post by Tony R »

ralphrmartin wrote: Thu May 28, 2020 7:33 pm Yes; some people even recommend removing the top growth in winter to encouraging flowering the following year.
All the top growth was removed from the plants in my thread
https://forum.bcss.org.uk/viewtopic.php?f=83&t=169923
last August-September. The new growth has all happened this spring.
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Re: Pterocactus tuberosus

Post by Acid John »

Seeing these pictures means it is going to get a very severe 'short back and sides'🤣
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Re: Pterocactus tuberosus

Post by Christian »

Does this pruning practice encourage flowering? For the first time I pruned one of my two plants of these (cuttings originating from one plant) whilst leaving the other one unpruned. They are both next to each other in a cold frame. It looks as though the pruned plant is developing buds, whereas as the unpruned plant keeps sprawling about.
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