Need advice on choosing companion plants next to Red Hibiscus.?

Its in a 3 foot raised block garden wall. Must take full sun and heat in southern california. Prefer evergreen. No plants with large roots.

Need advice on choosing companion plants next to Red Hibiscus.?
What about another colour Hibiccus tree?


Or a sago palm.


Ive also found a bit of information for you that you might like to think about when picking out your plant/tree.


Look for the highest zone--up to zone 9 for California's climate conditions.


http://www.pse.uri.edu/maynard_susplants...


I'd also suggest you ask a good nursery in your area for their advise.
Reply:Below is a link with many trees, shrubs and vines fitting your needs. Look for the highest zone--up to zone 9 for California's climate conditions.





http://www.pse.uri.edu/maynard_susplants...
Reply:how about a sago palm? i'd also ask a good nursery in your area.