Floral patterns woven in this cardigan, notable for design (9,6)

I believe the answer is:

botanical garden

I'm a little stuck... Click here to teach me more about this clue!

'design' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'floral patterns woven in this cardigan notable' is the wordplay.
'cardigan notable' can be anagrammed to 'BOTANICAL GARDEN'.
But, I am not sure how this is indicated.

'for' acts as a link.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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