Board Thread:Naruto Discussions/@comment-44437908-20200710093820/@comment-26369387-20200711012328

...Not gonna lie, this is one of my ideas for how AU!Wood Release would work.

I mean, water and earth are important things for trees to grow, but when you combine them, you get mud, which is why you also need third important thing: sunlight. And since 陽, Yō(Yang) also means "sun; sunlight"...

But yeah, in canon Naruto, earth and water are enough for Wood Release.