AP BIOLOGY

Detailed explanation-1: -When do sunflowers bloom? Annual sunflowers bloom during summer and into autumn. Sow new plants every few weeks and you’ll enjoy non-stop flowers until the first frost. Perennial sunflowers bloom for a period of 8-12 weeks with some beginning as early as July and others finishing as late as October.

Detailed explanation-2: -Common sunflower is a member of the Asteraceae, the Sunflower family. In older manuals and guides, this family is called the Compositae because the ‘flowers’ are a composite of many flowers, often of different types.

Detailed explanation-3: -Look at growing conditions When you find your sunflower plants with no flowers, first take a close look at where, when and how you planted them. Improper growing conditions and culture definitely can result in no blooms on sunflowers. Let there be light! Yes, sunlight is on the top of a sunflower’s “must-have” list.

Detailed explanation-4: -Proud yellow sunflowers reach for the sky. Fine as a field of sunflowers in a summer dawn. Some sunflowers were first cut for home. Now you are ready to heat the sunflower oil.