"HumanJHawkins" wrote

Do you know what kind of bamboo it is? If so, answers can be more
specific.

Judging from the aspect of the mature culms elsewhere
in the garden (green with one yellow stripe lengthwise)
and from pictures on the internet it must be a variety of
Phyllostachys Aureosulcata.

This bamboo is relatively common here (Western Connecticut)
because of its good resistance to low temperatures and general
hardiness.