If referring to it by it's official English name, Giant Goldenrod, then it is a proper noun. If used on its own as just 'goldenrod', then it is a common noun.
common
The word goldenrod is a common noun, a word for any goldenrod.A proper noun is the name of a person, place, thing, or a title; for example:The Goldenrod (candy store), York Beach, MEGoldenrod, FLGoldenrod Street, Escondido, CAGoldenrod Print & Mail, Lincoln, NE
If Daisy is someone or something's name (for example, Daisy Fuentes), then it is a proper noun. However, daisy referring to a type of flower is a common noun.
Yes, the term "Lotus Temple" is a proper noun as the name of a specific building located in Delhi, India; the name of a specific thing.A proper noun is the name or title of a specific person, place, or thing.A proper noun is always capitalized.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
proper
Common
common and proper
common
No, the noun 'carnation' is a common noun, a general word for a type of flower. There are many varieties of carnation, so the name does not apply to any one variety. It is a common noun and is not capitalized unless it is the first word in a sentence.
It is capitalized at the beginning of the sentence or when it forms part of the proper noun. Example: National Poinsettia Day
common