That lovely flower certainly looks like an azalea to me, although I am no expert. Azaleas are part of a very large family of plants knows as Rhododendron, which all have similar flowers. Most of the non-azalea members of the Rhododendron have thick, leathery leaves, and your leaves appear to be thinner and not so "leathery" in look. So, yes, I would think that is very possibly an azalea! Since there are over 10,000 species and cultvars of azaleas, it is entirely possible that one was bred to be three meters tall! That is impressive! Thanks for sharing this beautiful flower!