I think this is <i>Camellia sasanqua</i> 'Otome-sazanka' (it was labelled <i>C. japonica</i> 'Lady Loch' when I photographed it, but had previously been labelled <i>C. sasanqua</i> 'Pink Pearl'), growing at <a href="https://en.wikipedia.org/wiki/en:Birmingham_Botanical_Gardens" class="extiw" title="w:en:Birmingham Botanical Gardens">Birmingham Botanical Gardens &amp; Glasshouses</a>
<a href="//commons.wikimedia.org/wiki/User:Peter_coxhead" title="User:Peter coxhead">Peter coxhead</a>
2011-11-17
<span class="int-own-work" lang="en">Own work</span>