生える: to grow

庭にわに雑草ざっそうが生はえてきた。

Weeds have started growing in the garden.

イザナギは、髪かみかざりを投なげると、山やまぶどうが生はえ、櫛くしを投なげると、たけのこが生はえました。

When Izanagi threw down his hair ornament, wild grapes grew, and when he threw down his comb, bamboo shoots grew.

背中せなかには、こけや木きが生はえていて、八やっつの谷たにと八やっつの丘おかをおおうほど長ながかったといいます。

Moss and trees grew on its back, and it is said to have been long enough to cover eight valleys and eight hills.