double gold vs golden glow

double gold and golden glow both are nouns.

Word	Noun	Adjective	Verb	Adverb
double gold	Yes	No	No	No
golden glow	Yes	No	No	No

As nouns, double gold and golden glow are synonyms defined as:

double gold and golden glow: very tall branching herb with showy much-doubled yellow flower heads

Other synonyms of double gold include hortensia, Rudbeckia laciniata hortensia.

double gold (noun)	golden glow (noun)
very tall branching herb with showy much-doubled yellow flower heads	very tall branching herb with showy much-doubled yellow flower heads