Question

poinsettias form the flower buds naturally during late ______.
a. january and early february
b. june and early july
c. may and early june
d. september and early october

Explanation:

Poinsettias are short - day plants. Short - day plants require long nights (short days) to flower. As the days get shorter in late September and early October (in the Northern Hemisphere), the conditions are right for poinsettias to form flower buds. January - February has short days but poinsettias are already in a different growth phase then. June - July and May - June have long days, which is not conducive for poinsettia flower bud formation.

Answer:

d. September and early October