awaiting help

see if this helps' family-myrtaceae, native to australia, hardness-zones 8a 8b 9a 9b 10a 10b if it helps the wirral is 9a thats about middle of the country and they grow well and winter well there, you are a lot further south

This particular Callistemon is only hardy in milder districts - if where you live gets very cold, make sure it's in a sheltered spot, preferably out of cold winds, and in full sun.