Can you answer this? Some Pads Turning Yellow on 35 yo Opuntia engelmanii -- Is this a problem? https://t.co/24ZtWejmw0 #cactus

— Gardening SE (@StackGardening) 2021.6.24

Opuntia engelmanii https://t.co/ntsW9CVU49

— plino (@lndigoJeans) 2021.5.2

Prickly pear with the delicious cactus apple fruit! Opuntia engelmanii, #cactusjungle #cactus #cactusflower #cactusjunglemarin https://t.co/rcj7JGYU7f

— Cactus Jungle (@CactusJungle) 2020.6.25

Check out Yellow flowering cactus Opuntia Engelmanii Var. Subarmata hardened cuttings https://t.co/eZdeKUPpFw via @eBay

— Floridaflowerfloozie (@FLAflowerfloozi) 2016.1.24