This poem is a kind of an interment song, written four stanzas of six lines each.
Shakespeare invites all the good within everything available in nature such as a rose flower into the bridal home to bless the bride and her bridegroom.
I have post a Chinese translation about this poem, but there ia a guy named: justjust gives information like this as follow:
'this was the first time i saw this poem. i have a feeling that it was not written by shakespeare. why so? meter is one thing of consideration. shakespeare did not seem to use this kind of meter (often) . secondly, some words may not be so shakespearean. for instance, the word 'Ver'. apparently this is not an english word. it is latin, meaning spring. i don't recall seeing this word in his sonnets. also the rhyme. i would think that normally shakespeare would choose a different type of rhyme. '