Macro is a field of photography in its own right.
So I am posting a link to in my opinion the master, .......... or Google Heather Angel.
http://www.naturalvisions.co.uk/
For macro I use a benbo tripod a bit awkward to set up but a lot more versatile design than the standard 3 leg type.
Diffused flash helps with extra light when a tripod cannot be used.
Selecting an angle that will maximise the very shallow DOF.
Even a collapsible reflector - mini lastolite type can help add light.
I'll just let her images speak for themselves.
Enjoy
Don