The word “foliage” translates the Italian “fogliame” (i.e. a cluster of leaves, branches and flowers) but its meaning does not include the spectacular time of the year when woods start changing the colour of their leaves. Yet, even though there is not a single word for that – you should explain with it a long sentence – the event does exist. Enjoy!
“The creation of a thousand forests is in one acorn” ~Ralph Waldo Emerson
“From tiny acorns, do mighty oaks grow” ~ Geoffrey Chaucer