春來發幾枝 In spring their shrubs sprout some new twigs.

勸君多採擷 May I advise you of picking them as many as you can?

此物最相思 For they symbolize the keenest yearning of love you can imagine.

PS: When my two grandchildren were in "summer camp" in Taipei, a teacher taught them to read this popular "childrens" poem. The younger sister showed me her learning and recited it with a funny accent; it was so cute.