I have grown both of these trees from plugs I got from the Jonsteen Co several years ago.
The coastal live oak may need some winter protection in 5a, but they do fine here in my Oregon winter, a 9b. Can hit the teens, but rarely and not long duration. They're more sensitive to the summer drought and heat, though.
The English Oaks are are very hardy. No problems with that one anytime of year. The leaves reduce quite nicely with just ramification.
I grew them all in containers the whole period with the intent of using them for forest plantings. I processed five of the live oak last spring and planted them together, doing some major root pruning at that time. One of the five didn't make the transition and perished. Lucky I have another to replace it with next spring. The other four are doing fine this spring, but I want to give them a full recovery before I tear into it again to implant the fifth tree.
I did the English Oaks this spring, with the same major root reduction and planted two twins together in one pot and three that I trained as clumps I planted together in one pot. They're all just putting out their leaves now and looking quite nice.