I've marked below, above the words of the first few lines, the stress and rhyme pattern.. This process is known as "scanning" and it is how you analyze poetic meter. I use - for a weak syllable and / for a strong syllable and | to indicate foot divisions.
/ - | - / | - / | - / A
There is |a Gar| den in| her face,
- / | - / | / / | - / B
Where Ro|ses and | white Lill| ies grow ;|
- / | - / | - / | - - /
A heau'n|ly par|adice| is that place,| A
Wherein all pleasant fruits doe flow. B
There Cherries grow, which none may buy C
Till Cherry ripe themselues doe cry. C
The basic metrical pattern is iambic tetrameter, with an average of 1 rhythmical variation per line (fairly typical of the period) oincluding spondaic, trochaic, and anapestic substitution, with occasional use of ellision. The stanzas are sestets, rhymed ababcc.
nb -- the enotes software changed my spacing making the scansion hard to read. Sorry.