Pyrrhocactus bulbocalyx

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valtr8
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Pyrrhocactus bulbocalyx

Post by valtr8 » Sun May 27, 2018 9:28 am

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valtr8
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Re: Pyrrhocactus bulbocalyx

Post by valtr8 » Sat Sep 15, 2018 7:40 pm

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Aiko
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Re: Pyrrhocactus bulbocalyx

Post by Aiko » Sun Aug 18, 2019 8:27 pm

I recently acquired a few small Pyrrhocactus bulbocalyx. I was thinking of allowing them to overwinter without any frost protection, expecting them to be able to take maybe -10C. I read upon this, and from Llifle and Cactus Art the (duplicated) text indicates to keep it above 0C, which seems quite high to me.

Anyone that can confirm my idea? Or do they really need to be protected from frost?
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