A damaged adult giant swallowtail on Meyer lemon, its citrus host plant.
A damaged adult giant swallowtail on Meyer lemon, its citrus host plant. KENNETH SETZER Fairchild Tropical Botanic Garden
A damaged adult giant swallowtail on Meyer lemon, its citrus host plant. KENNETH SETZER Fairchild Tropical Botanic Garden

He found the mysterious lemon growing on doorsteps in China. Now it’s a US favorite

November 30, 2017 07:30 AM

UPDATED November 30, 2017 07:30 AM

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