Swallowtail butterfly food - Golden orange leaves, Kumquat leaves - Packed full to the Yu-Packet Post size, including branches

Golden orange (Ougonkan) and kumquat leaves.
Soft new leaves have started to grow.
How about these as food for swallowtail butterfly larvae?
We will cut them after receiving your order, rinse them quickly, and pack as many as we can fit. We estimate about 200 grams. They will be sent with stems. We will send a generous amount.