To Join to another spoke wheel flower leave 2 V stitches to match to another flower and work as follows.
2 treble, chain1, put hook through V on other flower , make sure in correct line with other joins, hook through thread and loop on hook , 2 treble, double crochet into single chain repeat to make two anchors on the other spoke wheel flower
Joining more rows is the same principle, just count back 2 V per side joined
Hope you understood that. If you complete a scarf link your comment back to your blog so I can go have a look at your creation. :)