
NEWTON, Ask A Scientist!
Status: student
Grade: 6-8
Location: CA
Country: N/A
Date: 1/9/2005

Why do tulips continue to grow after they are cut?

Because the stalk needs to grow from the bulb below the soil surface and continue upwards, the tulip has chemicals called auxins that help the stem/stalk to grow. Even after cutting, the plant cells inside of the stem continue to divide and elongate.

Anthony Brach Ph.D.

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