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How old is it?
Mine is smaller than smallest part of yours :). Just starting to bloom.

Mhh.. I don't know, but I can tell you that I have had this plant safe for more than 8 years and I remember that it never tall, I always put sticks to support it, then I discovered that it has a prostrate posture, horizontal to the ground ^^
it was quite large, considering that it is now completely dehydrated , it will soon acquire many more centimeters. However surely over 13 years ....

Nice. I hope I don't kill mine for the next 13 years.

ahahah no no no long life!