The first 'ye' in that line of the Herrick is ambiguous. One would need a C17 text to ascertain whether he wrote [obs letter] 'thorn'- ƿ - + e to mean "the", or whether he did mean the second person plural as a reinforcement to the imperative 'gather', as one might say "You mind what you are saying", altho the first 'you' is merely emphatic rather than integral to the meaning. Have you had access to one to check this, Airymouse? Or do you have a ref to any exposition of the question anywhere?

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