That depends on where you live. Mid to late spring, such as in May or June in the Northern Hemisphere, or November or December in the Southern Hemisphere, is usually the best time. If you live in an area that is warm year-round, you can plant them in any month.
sunfolwer bloom durning the summer
Up to the height of a house!
If by "open up" you mean "bloom", then yes.
Plants can flower regardless of whether they are perennial or annual, so no, blooming does not automatically make a sunflower a perennial.
A sunflower faces the sun during the day because it needs sunlight for photosynthesis. * During the day a young sunflower's flower head faces the sun to receive the sunlight it needs for photosynthesis . Heliotropism is the term for a plant's ability to follow the sun. That ability allows a sunflower to move with the sun as it arcs across the sky from east to west ; the sunflower's bloom always faces the sun . The neck of the sunflower's stem, just below the bloom, points the bloom in the direction of the sun . In early morning, plant cells on the western side of the stem begin to grow and elongate, causing the sunflower bloom to tilt toward the sun. As the sun moves across the sky, the cells on the stem's side that is opposite the sun elongate, keeping the flower head facing the sun .
Poinsettia plants bloom in the month of December although they are the most difficult flowering potted plants to rebloom.
grass it grows in about a week sunflowers take a long time to bloom
About the end of August
The main purpose of a sunflower (Helianthus annuus):Home gardener: the sunflower provides a beautiful ornamental summer flower.Food: the seed is a healthy snack that keeps you satified longer.Cooking ingredient: the sunflower oil is a healthy alternative.Spirituality: the full bloom plant is a symbol of God, happiness, wisdom and goodness.
Oak trees usually bloom in North Carolina in April.
The blooming month of the Peace Lily is March. The white bloom of the Peace Lilies mainly appear in the Spring. They also bloom in April, May, and June.
the more sun a sunflower gets makes it bigger..... maybe!! I'm just guessing but that would make sense because it's called a sunflower>>>>>>?>>>>><<<<:"P)