Here a couple of Euphorbias that are still hanging around in my collection, not sure of the ID on either. One is clearly in need of a bigger pot, but given it got a bad case of sunburn last summer, I was not sure it would be worth it, but it has moved on from that really well. I have a giant E. tirucalli 'Firesticks' in my front yard that looks like it grew half a foot every time I look at it, and I have another few in pots. I am of a mind to expand my collection a bit, but the initial focus would be be on larger growing, AZ full sun capable, in the ground plants (like E. resinifera and some of the arborescent Euphorbias).