I have written your poem out as it is too hard to explain when some repeated lines are ok... my suggestions are in bold... and it is only a quick edit as it is late here and i can't concentrate too well with the length of this

For you my gardens thrive and bloom,
sending perfumes all your way - the trochaic sort of works, but (only imo I stress) I think you need to keep the rhythm at this point in the poem, so it needs to be iambic
to weave the heaven's charms on loom,
for you my gardens thrive and bloom.
The sunrise shines to glint the gloom, - love this line
and casts its rays on plots you lay.
For you my gardens thrive and bloom,
sending perfumes all your way.

For you I garner drops of dew
aligned in awe one by one – an iamb short
a crown onto the head-anew
I garner you drops of dew.- an iamb short
Alike the pearls under the sun – meter out (PEARLS UN-der the SUN)
adorning the face I love-my son
for you I garner drops of dew
aligned in awe one by one.- ditto above

Those flowers' scents for you I gather
then bottle and wrap with lots of care - meter out (BOTT –le and WRAP)
With odours fresh and sweet with attar – love this line too
for you, unique scents I gather – the meter is out here – but I like it
Inhale whenever dawns do scatter
the gentle glories cloak and wear
for you those flowers' scents I gather
bottled and wrapped with lots of care - ditto above

For you I capture the rainbow's glow - meter out
in hues so bright, that often strike
and paint around when dimness flows
I capture for you the rainbow's glow, - meter still out – (for you I catch the rainbow’s glow?)
so let the colours paint your hike
and tinge your thoughts and heart alike 
The rainbow's captured for you to glow - too long (nine syllables but not a feminine line)
in hues so bright that often strike.

For you I free the birds to tune
songs composed, seraphic sound – I think you can get away with the trochaic here if you want to – think about the pause it causes the reader to take)
enchant the birdcalls and croon – an iamb short
for you, the birds are freed to tune.
No flaws you'd hear when birds unbound,
angels' music rocks the ground. - ditto with what I said above re trochiac
I free for you the birds to tune
songs composed, seraphic sound.- ditto

For you the rain has kissed the land
tapped it gently like a mother – this does work
who missed a child –so is the sand.
When the rain kissed the thirsty land, - iambic out (when the RAIN)
the showers whispered magic utters
to quench the thirst and murmer - iamb short
for you the rain has kissed the land
and tapped it gently like a mother.

For you I haunt the moonlight,
and summon the clear skies
For you I catch the stars
insights feeding hungry eyes- all too short – and yes – I do think it would improve the ending to make this a triolet, as I suggested above

as I said – i love this write – I will come back with more suggestions (lol) when you edit

love judy

xxx