What does the cryptic crossword clue "Source of floral stuff repurposed in banal decorating (9,6)" mean?

The wordplay uses an anagram. anagram of BANAL DECORATING = BOTANICALGARDEN The answer is BOTANICALGARDEN.

Source of floral stuff repurposed in banal decorating (9,6)

Guardian Cryptic #29651 | 6 Down | 2025-03-25 flower