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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comI live in Toronto, and about a year ago I bought a cluster of golden barrel cacti — now I’m worried about them. I’m careful not to overwater. When I bought them, they were all round. But now, they have grown into an oval shape. And one of the larger ones has a sort of weird, isolated indentation. Any suggestions? See images:
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[1] https://www.gardeningknowhow.com/ornamental/cacti-succulents/barrel-cactus/barrel-cactus-care.htm: https://www.gardeningknowhow.com/ornamental/cacti-succulents/barrel-cactus/barrel-cactus-care.htm
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1 Comment To "Golden Barrel Cacti cluster. After about a year, shapes are changing from round to oval, and an odd indentation in one."
#1 Comment By GKH_Susan On 10/28/2020 @ 2:34 pm
Your cactus is actually supposed to take on a cylindrical shape as it grows. As far as the dented one goes, you'll just have to watch to see what's going on with it. It could have mealybugs or aphids, which can be controlled with insecticidal soap. You can get some that's specifically made for cactus. Also make sure it's not a soft spot, which indicates rot. Make sure your pots drain well.
https://www.gardeningknowhow.com/ornamental/cacti-succulents/barrel-cactus/barrel-cactus-care.htm [1]
https://www.gardeningknowhow.com/ornamental/cacti-succulents/scgen/erwinia-soft-rot-in-cactus.htm [2]