That's typical Cisco terminology where the word trunk is used to define/refer to an interface that will carry (permit) multiple VLANs...in HP world that is done by tagging VLAN IDs on the required interfaces (tagging a physical/logical port)...and that, as you discovered, has nothing to do with Port Trunking (aggregation) I described...so you shouldn't use the 1810 Trunk GUI configuration page (trunk=aggregation) but instead look at IEEE 802.1Q VLAN tagging configuration available on physical ports (eventually logical - if you will end up with one or more BAGG(s) to ESXi - is possible too) that will be used to connect to your ESXi host.
Read this nice post about HP versus Cisco terminology confusion.