why do yellow tulips open and close?

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why do yellow tulips open and close?

2006-11-08 05:20:06 · 3 answers · asked by monalisa 1 in Home & Garden ➔ Garden & Landscape

3 answers

Protection from the elements. They also close at night because there is no sunlight, so the extra surface area is not need. they open again during the day, increasing surface area, thereby increasing photosynthesis.

2006-11-08 06:18:54 · answer #1 · answered by Prince of Persia 2 · 0⤊ 0⤋

I wasn't aware that after they open, that they close. Maybe I have never paid attention, but I have grown tulips.

2006-11-08 05:56:07 · answer #2 · answered by DeeDee 6 · 1⤊ 0⤋

All tulips open and close.

2006-11-09 18:29:14 · answer #3 · answered by aseachangea 4 · 1⤊ 0⤋