<entry id="2229296" stat="A" corpus="jmdict" type="jmdict">
<ent_corp type="jmdict">jmdict</ent_corp>
<ent_seq>2066780</ent_seq>
<k_ele>
<keb>夏椿</keb>
</k_ele>
<k_ele>
<keb>夏ツバキ</keb>
<ke_inf>&sK;</ke_inf>
</k_ele>
<k_ele>
<keb>夏つばき</keb>
<ke_inf>&sK;</ke_inf>
</k_ele>
<r_ele>
<reb>なつつばき</reb>
</r_ele>
<r_ele>
<reb>ナツツバキ</reb>
<re_nokanji/>
</r_ele>
<sense>
<pos>&n;</pos>
<gloss>Japanese stewartia (Stewartia pseudocamellia)</gloss>
</sense>
<info>
<audit time="2005-11-09 00:00:00" stat="A">
<upd_detl>Entry created</upd_detl>
</audit>
<audit time="2010-06-23 02:53:20" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_diff>@@ -16,2 +16,2 @@
-&lt;gloss&gt;Japanese stewartia&lt;/gloss&gt;
-&lt;gloss&gt;stewartia pseudocamellia&lt;/gloss&gt;
+&lt;misc&gt;&amp;uk;&lt;/misc&gt;
+&lt;gloss&gt;Japanese stewartia (Stewartia pseudocamellia)&lt;/gloss&gt;</upd_diff>
</audit>
<audit time="2023-04-23 16:45:09" stat="A" unap="true">
<upd_name>Brian Krznarich</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>椿 itself is not [uk].  Any obvious pairings (夏、雪). probably won't be either.

As with several other 椿 entries, apparently not [uk].  Not extremely common on twitter, but 夏椿 certainly appears at least as popular as the kana form.

More often than not, they seem to appear together (which would explain the ngrams being pretty close).

Here's a gardening article that almost exclusively uses the kanji form(just mentions the kana one time).
https://gardenstory.jp/plants/69563

椿 is jinmeiyo, so newspapers are not "supposed" to use it for flowers (as I understand it).  Kanji certainly underrepresented in "proper" news results.</upd_detl>
<upd_refs>夏椿	18915	47.7%
ナツツバキ	15317	38.6%
なつつばき	1780	4.5%
夏ツバキ	1493	3.8%
夏つばき	2159	5.4%</upd_refs>
<upd_diff>@@ -5,0 +6,8 @@
+&lt;/k_ele&gt;
+&lt;k_ele&gt;
+&lt;keb&gt;夏ツバキ&lt;/keb&gt;
+&lt;ke_inf&gt;&amp;sK;&lt;/ke_inf&gt;
+&lt;/k_ele&gt;
+&lt;k_ele&gt;
+&lt;keb&gt;夏つばき&lt;/keb&gt;
+&lt;ke_inf&gt;&amp;sK;&lt;/ke_inf&gt;
@@ -16 +23,0 @@
-&lt;misc&gt;&amp;uk;&lt;/misc&gt;</upd_diff>
</audit>
<audit time="2023-04-23 20:25:42" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
</audit>
</info>
</entry>