Why do these staple foods grow abundantly in Samoan and not New Zealand?

This is inaccurate, the staple foods listed grow abundantly in both Samoa and New Zealand. Taro, yam, ulu (breadfruit), and coconuts are all tropical plants that thrive in the warm, humid climates of both countries. New Zealand, while not within the tropics, does have warmer coastal areas that have the appropriate conditions to grow these staple foods.