What does "Lemon Tree" mean?

Question

I'm a foreigner and I'm not familiar with English
so even though the question sounds a bit dumb, please leave an answer.

I know what 'lemon' and a 'tree' is.
I'm curious if there's another meaning.
I've heard a song that goes..

'Yesterday you told me 'bout the blue blue sky
And all that I can see is just a yellow lemon tree'

The 'lemon tree' in the lyrics, does that have a meaning something else besides the meaning in the dictionary?

Answer 1

Gee - I don't mean to sound dark or mean here but - lemons do grow on trees. So do most citrus fruits that I can think of. So a lemon tree is just a lemon tree.

Pineapples actually grow on vines on the ground though.

Answer 2

Not sure if this is the same song or not:

Lemon tree, very pretty, and the flower is very sweet --
But the fruit of that poor lemon is impossible to eat!

I think it's a metaphoric song, talking about love and sex. But no, it's not a general meaning. Just one songmeister's idea.

Answer 3

Lemon Tree means: Tree that grows Lemons!

Answer 4

Blue sky refers to "when things are going really great"
And the lemon tree refers to "it does not seem so great"
Lemons often refer to something soured or not working as in "The car was a lemon" Hope that helps.

Answer 5

* Apart from its general effect as an energizing tonic, it is reputed to ward off infection, relieve colds & flu and, when used in moderation, benefit the skin, although it should be avoided before sunbathing.
www.deadsea-cosmetics.com/aromatics.htm

* lemon: a small evergreen tree that originated in Asia but is widely cultivated for its fruit
wordnet.princeton.edu/perl/webwn

Answer 6

Think it just atree produces lemon .