Above is a photo of what I believe is a Cleistocactus growing in my garden. It is planted under the eaves of the house along the north facing side of the house, driveway side. For the last few years it has had some minor dieback on a branch or two but...https://cactusact.org.au/index.php/9-plants/47-frank-h-2016
Assuming die-back is required, the following results were found.
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