This plant can become quite large with tremendous age.
Euphorbia Milli Succulent Plant with Coral Flowers | NW Phoenix
Very slow growing most of the year (is picking up the pace in March--was much smaller only about a month ago!) but said to become a bush if not pruned to keep it smaller. So far in about a year, I've seen mine become about 14" tall. This one is in about a 3.75 inch diameter white ceramic planter with lots of room for future growth and has two main heads with one tiny third one (though it may eventually form 4-5 with the pruning I've done so far); don't be scared to prune this plant (cut off leaves or the tops of a stem) because when you do, you will force it to branch out.
The shopping cart does not allow me set a by-car delivery fee (possibly free) by location and order size. So, the fee will be collected in cash at the time of pickup (please hide it for me in a shady spot where you want the plants to be delivered).