Question

Jayden is researching edible plants and wants to learn more about the ways in which people can eat parts of the Spanish needle plant. Which is the most effective research question to accomplish this purpose?

Is Spanish needle an attractive garden plant?
How can Spanish needle be used for food?
What makes Spanish needle different from other plants?
Do other garden plants grow well near Spanish needle?

Answer 1

"How can Spanish needle be used for food?"

This directly focuses on edible uses and ways people can eat parts of the plant, matching Jayden’s research goal.